Former Secretary of State Hillary ClintonHillary Diane Rodham ClintonPoll: Majority of Democratic voters happy with their choices among 2020 contenders No presidential candidate can unite the country GOP lawmakers speak out against 'send her back' chants MORE sharply criticized President TrumpDonald John TrumpCould Donald Trump and Boris Johnson be this generation's Reagan-Thatcher? Merkel backs Democratic congresswomen over Trump How China's currency manipulation cheats America on trade MORE during an appearance in Las Vegas on Sunday, using the word "deplorable" to describe the last several years.

“What we have seen over the last several years is truly deplorable,” the 2016 Democratic presidential nominee said to rousing applause.

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Clinton's use of the word deplorable was notable because Trump and his supporters had blasted her during the 2016 presidential race after she described a portion of his supporters as belonging to a "basket of deplorables."

Appearing alongside her husband, former President Bill ClintonWilliam (Bill) Jefferson ClintonNo presidential candidate can unite the country Lindsey Graham's Faustian bargain Military spending has many points of contention: Closing overseas bases isn't one of them MORE, in an appearance on their speaking tour, Hillary Clinton took several swipes at Trump during her more than 90 minutes on stage.

She first used the word "deplorable" while speaking at a campaign event in September of 2016. Trump and his campaign quickly seized on the comments and his supporters began to embrace the term.

Clinton also weighed in on the Mueller report during her appearance, saying that it shows “this president obstructed justice.”

“He tried to interfere with that investigation,” she added, referring to special counsel Robert MuellerRobert (Bob) Swan MuellerTop Republican considered Mueller subpoena to box in Democrats Kamala Harris says her Justice Dept would have 'no choice' but to prosecute Trump for obstruction Dem committees win new powers to investigate Trump MORE’s investigation into Russian interference in the 2016 election that also focused on whether Trump sought to obstruct the probe.

In her wide-ranging speech, Clinton also slammed Attorney General William BarrWilliam Pelham BarrHouse gears up for Mueller testimony History in the House: Congress weathers unprecedented week Court filings show Trump, Cohen contacts amid hush money payments MORE for acting like the “president’s defense attorney, not the attorney general for the entire country” during his testimony last week before the Senate Judiciary Committee.