Theresa May with Jean-Claude Juncker, the European Commission president. Voters told YouGov that it would be wrong for MPs to stop Brexit

The public think that Theresa May is handling Brexit more badly than at any point since she became prime minister, according to a new poll for The Times.

Only 21 per cent believe that the government is doing well in the negotiations, with 66 per cent thinking ministers are doing badly. The net score of minus 45 per cent is the lowest in a YouGov poll, down from minus 39 points two weeks ago.

There has been a dramatic drop in confidence in Mrs May’s handling of Brexit after the botched general election last year. For the opening months of 2017, the public broadly approved of the way the prime minister was handling things.

The news came in a poll that put the Conservatives