Her statement to the Covid Inquiry will raise some tricky questions for the ex-PM.
Ex-PM will return to the inquiry for a second day in the spotlight on Thursday.
"He’s the most inarticulate public speaker and prime minister I’ve ever known."
The former prime minister is set to appear before the inquiry into the handling of the pandemic.
The ex-PM isn't expected to get an easy ride.
The former health secretary is the most senior figure to admit the government was too slow to act.
But an ally of the former health secretary said Boris Johnson's former aide is "not a reliable witness".
Ex-health secretary says he should have used his “hunch to overrule the science”.
The prime minister will be quizzed over his heavily-criticised handling of the pandemic.
The secretary of state also apologised for government mistakes during the pandemic.