LONDON — The governing Conservative Party in Britain was criticized by Twitter on Wednesday for “attempts to mislead people” after it temporarily changed the name of one of its accounts on the social media site to “factcheckUK.”

The name change was made during the first election debate on Tuesday between the Conservative leader, Prime Minister Boris Johnson, and Jeremy Corbyn, the leader of the opposition Labour Party. Truth and trust were at the forefront of the debate — and have been a focal point of the campaign so far. The election is set for Dec. 12.

At one point during the televised debate, the moderator, Julie Etchingham, asked, “Does the truth matter in this election?”

“I think it does,” Mr. Johnson replied. The audience burst out laughing.

The Conservatives’ verified account was originally named CCHQPress, for Conservative Campaign Headquarters.