CLEVELAND — A last-minute effort to change the rules of the Republican National Convention in an attempt to deny Donald Trump the presidential nomination briefly roiled the GOP on its first day of meetings.

A voice vote to adopt rules that would pave the way for Trump’s nomination was met with boos and a parliamentary attempt to force a roll-call vote. Although the pro-Trump forces seemed louder in the voice vote, the “no” shouts were louder than leaders of the party, seeking to show unity, wanted to hear.

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“Who’s proud to be an American?” asked Wyoming Sen. John Barrasso, chairman of the GOP Platform Committee, trying to tamp down the opposition. He cited the Declaration of Independence and U.S. Constitution as reasons for supporting Trump and his America First platform.

In the end, the delegates adopted rules that will keep delegates bound to Trump even if they support another candidate.

Oklahoma Gov. Mary Fallin then spoke and continued to try to stir the crowd to unite: “I have one question. Who out there is an American patriot willing to fight to make our country great again?” That was met with cheers.

“Absolutely,” she said.