WASHINGTON — The top lawmakers on the House Intelligence Committee on Wednesday repudiated an allegation made by President Donald Trump earlier this month that his predecessor had ordered his phone tapped.

Trump, without offering any evidence, said on Twitter on March 4 that then-President Barack Obama had tapped Trump Tower, where the president lived and worked during the campaign. It was an extraordinary claim of illegal activity by a former president, and it set up a potential clash within the administration, as the Federal Bureau of Investigation asked the Justice Department to publicly rebut the accusation.