A petition is circulating seeking a roll call vote on the rules package at the Republican national convention, signaling perhaps a last call by those wishing to derail Donald Trump from accepting the party's nomination later this week in Cleveland.

The petition obtained Monday morning by The Associated Press asks delegates to sign if they support holding a roll call vote among delegates to give approval of rules proposals.

Paul Manafort, Trump's campaign chairman, said on NBC's "Today" show that he thinks very few delegates in the convention hall are anti-Trump. He added that those who are were elected to support other, failed GOP presidential candidates "and their passion hasn't left them yet."

The convention will vote on the rules Monday, an event seen as a last chance from for dissenters to derail Trump or at least disrupt the process of his acceptance of the nomination.

South Carolina delegate Bill Pickle also says some are calling for an emergency vote to pull the leadership from party Chairman Reince Priebus and elect a new chair.