OTTAWA — A former cabinet minister and current member of Parliament was asked to leave the Conservative caucus on Wednesday after acknowledging he had sent sexually explicit photographs and a video to a woman over a three-week period.

Tony Clement, the ex-minister who twice ran for the leadership of the Conservatives, said in a statement on Tuesday night that he had believed the recipient was “consenting.” But he said, without offering details, that he had “been targeted for the purpose of financial extortion.”

Shortly afterward, Mr. Clement resigned from several parliamentary posts, including a spot on a committee with access to national security intelligence. But on Wednesday afternoon, the leader of the Conservatives, Andrew Scheer, asked him to leave the caucus as well.

“I took him at his word that this was an isolated incident,” Mr. Scheer told reporters. “Since then, there have been numerous reports of other incidents, allegations.”