Jeremy Corbyn launched a startling personal attack yesterday after secret Conservative polls revealed that his integrity index had collapsed.
The leader of the Labor Party boasted of being a man of principle.
Nearly 40% of the country's inhabitants had previously declared that the socialist for life was a man of his word, whether he agreed with him or not.
But that figure has now dropped to only 11 percent, after the opposition leader was seen as a reversal of a series of Brexit-related issues, according to surveys conducted for conservative leaders.
In a fierce onslaught ending the house-to-house contest, the prime minister accused him of "ambiguity", of "politics" and not to say he wished a Brexit or a second referendum.
Ms. May added, "People used to say that he was a convinced politician. Not anymore".
Yesterday evening, an important Tory source told the Sun: "You will hear many more attacks on the integrity of Corbyn by the Prime Minister.
"This is a bruise we have identified and we will continue to hit it in the run-up to the May local elections."
The Conservative poll identified three recent decisions by Mr. Corbyn that led voters to question his motives.
MASSACRE OF MAY VALENTINE
The Brexiteers promise to defeat the Prime Minister on his plan to eliminate No Deal from the table
No Deal Brexit "would affect the Irish economy and crush the country's farmers"
MAY ON BREXIT
What did Theresa May say about Brexit and its latest Plan B?
What is Brexit, when does Britain leave the EU and what happens next?
The Fear project is an insult – we will leave the EU with or without agreement
The revelation follows last week's IPSOS MORI shock test for the Evening Standard, which found that Corbyn's net satisfaction rate dropped to less than 55 percent.
Down from minus 32 in December, the odds are now as bad as that of 1980s Labor Party leader Michael Foot, who was defeated by Margaret Thatcher by a landslide.