Senate Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellCoronavirus talks collapse as negotiators fail to reach deal Pelosi, Schumer say White House declined T coronavirus deal COVID-19 bill limiting liability would strike the wrong balance MORE (R-Ky.) says that Donald TrumpDonald John TrumpJoe Arpaio loses bid for his old position as sheriff Trump brushes off view that Russia denigrating Biden: 'Nobody's been tougher on Russia than I have' Trump tees up executive orders on economy but won't sign yet MORE’s Oval Office would have safeguards against risky behavior.

“Well, one thing I’m pretty calm about is that this is nowhere near the most divisive period in American history,” he said in a preview of an upcoming CBS interview. "But what protects us in this country against big mistakes being made is the structure, the Constitution, the institutions.

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“No matter how unusual a personality may be who gets elected to office, there are constraints in this country. You don’t get to do anything you want to.”

McConnell also disputed critics who say Trump’s blunt rhetoric is dividing voters into camps warring against each other.

“I’m very optimistic about America,” he said. "I’m not depressed about the nature of the debate.”

McConnell added that he believes Trump can win this November and that he plans on supporting the billionaire.

Trump on Thursday secured the necessary number of delegates to become the GOP’s presidential nominee. Multiple news organizations put the mogul at 1,238 delegates, one past the threshold necessary for becoming the Republican standard-bearer.

Trump launched his outsider campaign on June 16 last year, vexing political pundits with his tough talk and unpredictable stances.

He ultimately knocked off 16 rivals for the Republican presidential nomination, but internal strife over his candidacy still plagues the party.

Trump on late Thursday posted a video taunting doubters who predicted that he would not attain the GOP’s biggest honor.

The clip includes footage of former rivals like Gov. John Kasich (R-Ohio) and Sen. Ted CruzRafael (Ted) Edward CruzThe Hill's Morning Report - Presented by the Air Line Pilots Association - Negotiators 'far apart' as talks yield little ahead of deadline Wary GOP eyes Meadows shift from brick-thrower to dealmaker Trump-backed Hagerty wins Tennessee GOP Senate primary MORE (R-Texas) naysaying the businessman’s odds.

Hillary ClintonHillary Diane Rodham ClintonDemocratic convention lineup to include Ocasio-Cortez, Clinton, Warren: reports Trump brushes off view that Russia denigrating Biden: 'Nobody's been tougher on Russia than I have' Kanye West 'not denying' his campaign seeks to damage Biden MORE, meanwhile, on Thursday said that she is prepared for a messy general election battle with Trump.

“Look, I’m ready for his fantasy campaign and the outrageous things he’s going to say,” she told CNN’s Wolf Blitzer.

“Well, Wolf, look, I know Donald Trump says outrageous things all the time, but today he officially clinched the Republican nomination, so this is now as real as it gets,” the Democratic presidential front-runner added.

“This man, who is an unqualified loose cannon, is within reach of the most important job in the world, so it should concern every American."