Jeremy Hunt
The chancellor is under pressure to come up with pre-election sweeteners to help turn around the Tories' chances.
Jeremy Hunt could steal Labour's flagship tax policy.
Chancellor Jeremy Hunt may announce tax cuts and new measures to help first-time property buyers.
That puts chancellor Jeremy Hunt and backbencher Jacob Rees-Mogg in danger of losing their constituencies.
Tory MPs have also criticised the prime minister as the backlash against him grows.
Education secretary Gillian Keegan said she could not "guarantee" a promise made by Jeremy Hunt would be met.
The chancellor is planning some Budget sweeteners for voters.
The PM and chancellor have dropped multiple hints that they will reduce tax in the run-up to the general election.
"They're not acting in the national interest, they're acting in party interest," the Labour leader said.
The prime minister has hinted he will cut taxes in the Budget, but voters want investment in public services.
About Jeremy Hunt
According to his website: "In December 2005 he was appointed Shadow Minister for Disabled People, where he successfully campaigned for the BBC to increase the amount of subtitling on its programmes. He also campaigned strongly for simplification of the benefits system for disabled people and individual social care budgets. In July 2007 he was appointed to the Shadow Cabinet as Shadow Secretary of State for Culture Media and Sport where he has campaigned for more philanthropy for the arts, local TV, superfast broadband, a schools Olympics and a strengthened domestic tourism industry. "In May 2010 Jeremy was appointed Secretary of State for Culture, Olympics, Media and Sport in the new Conservative - Liberal Democrat coalition. In September 2012 he was appointed Secretary of State for Health in the Prime Minister's Cabinet reshuffle. "Jeremy divides his time between Westminster and his constituency home in Farnham. He married his wife Lucia in July 2009 and they have a son and a daughter."