The vote risks new tension between House Speaker Nancy Pelosi and high-profile freshmen who thus far have been supportive of her leadership strategy and agenda. Debate over the resolution has exposed a divide between older Democrats who sharply criticized Omar and some younger progressive freshmen in a historically diverse class of lawmakers. The differences challenge the unity Pelosi has cited as the party’s greatest asset in setting a bold agenda for their House majority.

A vote on the resolution was initially scheduled for Wednesday but was delayed as House leaders finalized the text. Asked Tuesday about the timing for the vote and the content of the measure, Pelosi said, “Congress is working its will.”

Pelosi said she had met personally with Omar regarding her comments.