WASHINGTON — With math and momentum on his side after more big wins, Republican front-runner Donald Trump called on GOP leaders Wednesday to embrace the public’s “tremendous fervor” for his candidacy. If GOP leaders try to deny him the nomination at a contested convention when he is leading the delegate count, Trump predicted, “You’d have riots.”

Trump, making a round of calls to morning TV talk shows, predicted he’d amass enough delegates to snag the nomination outright before the Republican convention, but added that “there’s going to be a tremendous problem” if the Republican establishment tries to outmaneuver him at the convention. He also said some Republican senators who are publicly trashing him have called him privately to say they want to “become involved” in his campaign, eventually. Trump did not name any.

Democrat Hillary Clinton, ready for a November matchup against Trump, took aim at him after strengthening her position against rival Bernie Sanders with another batch of primary victories of her own.

“Our commander-in-chief has to be able to defend our country, not embarrass it,” Clinton said in a speech that largely ignored Sanders. “We can’t lose what made America great in the first place.”

Clinton triumphed in the Florida, Illinois, Ohio and North Carolina presidential primaries, putting her in a commanding position to become the first woman to win the nomination.