A US politician has spoken non-stop for almost 11 hours to try to scupper an anti-abortion bill.

Texas Senator Wendy Davis was not able to eat or go to the toilet during her attempted 'filibuster' - and even wore a back brace so she did not have to lean on anything.

'StandwithWendy' trended on Twitter as President Barack Obama lent his support to the Democrat's efforts:

wendy davis

Davis was attempting to reach the 13-hour target that would mean the abortion bill, which would severely restrict access to abortion in Texas, ran out of time.

wendy davis back brace

Wendy Davis is helped with her back brace by a colleague

At 10pm, Davis was finally ruled off-topic by the Speaker, at which point Texans staged a sit-in, chanting; "Let her speak!"

There was chaos as Republican politicians claimed the vote had been carried out in time for the midnight deadline, while Democrats said they would mount an appeal if it was passed.

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The validity of any vote was left in doubt, CNN reported.

During her speech, a Republican colleague tried to intervene on Davis by asking her questions and attempt to get her to stray off topic.

"I will not yield," she replied.

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  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, left, who tries to filibuster an abortion bill, reacts as time expires, Tuesday, June 25, 2013, in Austin, Texas. Amid the deafening roar of abortion rights supporters, Texas Republicans huddled around the Senate podium to pass new abortion restrictions, but whether the vote was cast before or after midnight is in dispute. If signed into law, the measures would close almost every abortion clinic in Texas. (AP Photo/Eric Gay)

  • Wendy Davis, Kirk Watson

    Sen. Wendy Davis, D-Fort Worth, center, talks with Sen. Kirk Watson, D-Austin, left, after she was called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Members of the gallery respond as Sen. Wendy Davis, D-Fort Worth, is called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Member of the gallery respond by holding up their shoes as Sen. Wendy Davis, D-Fort Worth, is called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, reacts after she was called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Members of the gallery respond as Sen. Wendy Davis, D-Fort Worth, is called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, center, who tries to filibuster an abortion bill, hold up a no vote as time expires, Wednesday, June 26, 2013, in Austin, Texas. Amid the deafening roar of abortion rights supporters, Texas Republicans huddled around the Senate podium to pass new abortion restrictions, but whether the vote was cast before or after midnight is in dispute. If signed into law, the measures would close almost every abortion clinic in Texas. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, cener, filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • A line to enter the Senate Chamber spills into the rotunda as Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • David Dewhurst

    Lt. Gov. David Dewhurst, center, holds a conference with senators to discuss a rule during Sen. Wendy Davis', D-Fort Worth, filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis, Rodney Ellis

    Sen. Rodney Ellis, D-Houston, left, helps Sen. Wendy Davis, D-Fort Worth, right, with a back brace during her filibusters of an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. Davis was given a second warning for breaking filibuster rules. (AP Photo/Eric Gay)

  • Wendy Davis, Rodney Ellis

    Sen. Wendy Davis, D-Fort Worth, left, and Sen. Rodney Ellis, D-Houston, right, vote against a motion to call for a rules violation during Davis' filibusters of an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. Davis was given a second warning for breaking filibuster rules by receiving help from Ellis with a back brace. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, left, votes against a motion to call for a rules violation during her filibusters of an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. Davis was given a second warning for breaking filibuster rules by receiving help from Sen. Rodney Ellis, D-Houston, with a back brace. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, reacts after she was called for a rules violation during her filibusters of an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. Davis was given a second warning for breaking filibuster rules. (AP Photo/Eric Gay)

  • Hundreds line up to enter the Senate Chamber spills into multiple levels of the rotunda as Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, reacts after she was called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, center, holds her hand to her mouth as she stands with fellow senators after she was called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Standing in front of a portrait of President Lyndon B. Johnson, Sen. Wendy Davis, D-Fort Worth, begins a filibuster in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Hundreds line up to enter the Senate Chamber spills into multiple levels of the rotunda as Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Member of the gallery respond by holding up their shoes as Sen. Wendy Davis, D-Fort Worth, is called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Members of the gallery respond as Sen. Wendy Davis, D-Fort Worth, is called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis, Kirk Watson

    Sen. Wendy Davis, D-Fort Worth, center, talks with Sen. Kirk Watson, D-Austin, left, after she was called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Members of the gallery respond as Sen. Wendy Davis, D-Fort Worth, is called for a third and final violation in rules to end her filibuster attempt to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, speaks as she begins a filibuster in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Standing in front of a portrait of President Lyndon B. Johnson, Sen. Wendy Davis, D-Fort Worth, begins a filibuster in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, begins a filibuster in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • A line to enter the Senate Chamber spills into the rotunda as Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Opponents to an abortion bill sit in the senate chamber as Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill the abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Opponents to an abortion bill sit in the senate chamber as Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill the abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, stands on a near empty senate floor as she filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, stands on a near empty senate floor as she filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Opponents to an abortion bill sit in the senate chamber as Sen. Wendy Davis, D-Fort Worth, filibusters in an effort to kill the abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, holds up two fingers to cast a no vote to bring an abortion bill to the floor early for debate, Monday, June 24, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, stands on a near empty senate floor as she filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, stands on a near empty senate floor as she filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, center, speaks as she begins a filibusters in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, wears tennis shoes in place of her dress shoes as she begins a one-woman filibuster in an effort to kill an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis, Kirk Watson, Rodney Ellis

    Sen. Wendy Davis, D-Fort Worth, second from left, talks with Sen. Rodney Ellis, left, Sen Juan "Chuy" Hinojosa, D-McAllen, right, and Kirk Watson, D-Austin. as she prepares to filibusters an abortion bill, Tuesday, June 25, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, center, talks with fellow senators during a recess, Monday, June 24, 2013, in Austin, Texas. Senate democrats are trying to hold off on a bill that would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

  • Wendy Davis

    Sen. Wendy Davis, D-Fort Worth, holds up two fingers to casts a no vote to bring an abortion bill to the floor early for debate, Monday, June 24, 2013, in Austin, Texas. The bill would ban abortion after 20 weeks of pregnancy and force many clinics that perform the procedure to upgrade their facilities and be classified as ambulatory surgical centers. (AP Photo/Eric Gay)

Loading Slideshow...
  • President Obama

  • Senate Majority Leader Harry Reid (D-Nev.)

  • Sen. Chris Coons (D-Del.)

  • Judy Blume

  • Maryland Gov. Martin O'Malley (D)

  • Sen. Mazie Hirono (D-Hawaii)

  • Paul F. Tompkins

  • Christine Quinn

  • Dan Savage

  • Ricky Gervais

  • Carrie Brownstein

  • Rob Delaney

  • Paul Begala

  • Sen. Chris Murphy (D-Conn.)

  • Paul Scheer

  • David Plouffe

  • Cory Booker

  • Katha Pollitt

  • Sen. Jeanne Shaheen (D-N.H.)

  • New Jersey Gubernatorial Candidate Barbara Buono (D)

  • Elizabeth Banks

  • Planned Parenthood President Cecile Richards

  • Sen. Jeff Merkley (D-Ore.)

  • Tavi Gevinson

  • Sen. Debbie Stabenow (D-Mich.)

  • Wil Wheaton

  • Sen. Claire McCaskill (D-Mo.)

  • Russell Simmons

  • Henry Winkler