Real estate magnate and conservative political agitator Donald Trump had a tough time swallowing last night’s election results, and caught instant flack after urging Americans to start a revolution.

A longtime critic of President Barack Obama, Trump had been a staunch Romney supporter throughout the election, reportedly donating millions to Super PACs funding Romney’s campaign. In the days and weeks leading up to Election Day, Trump sounded confident about Romney’s chances of winning, tweeting hopeful messages like, “The election is trending towards @MittRomney. Americans know we can't afford another 4 years of the Obama economic decline.”

But his confidence gave way to vitriol on Tuesday night when his predictions were disproved by early voting results. “Well, back to the drawing board!,” Trump wrote, in the first of many tweets, before adding, “We can't let this happen. We should march on Washington and stop this travesty. Our nation is totally divided!”

“Lets fight like hell and stop this great and disgusting injustice! The world is laughing at us,” he urged. “This election is a total sham and a travesty. We are not a democracy!”

But Trump didn’t stop there. He continued to voice his outrage, writing that “The electoral college is a disaster for a democracy,” and that he hoped that “the House of Representatives can hold our country together for four more years.”

Trump’s comments were widely denounced by news anchors and political pundits, most notably NBC’s anchor Brian Williams.

“Reluctant as we are to pass this along, it nonetheless is, as they say ‘out there,’ and getting an airing tonight so you might as well know about it,” began Williams. “Donald Trump, who has driven well past the last exit to relevance, and veered into something closer to irresponsible here, is tweeting tonight.”

Williams went on to read aloud a sampling of Trump’s tweets, concluding, “and so on, so there you have it. That happened.”

But news anchors weren’t the only ones who responded to Trump’s incendiary remarks. Several Hollywood A-listers also criticized the businessman’s calls for retaliatory action.

“You trust the voters when they choose the Apprentice. But not now?” tweeted Alec Baldwin.

“Hey Trump, did you see Mitt Romney’s concession speech? That’s what graciousness and good hair looks like,” wrote Steve Levitan, producer of the hit sitcom “Modern Family.”

And finally, “Chill Sahn,” wrote Aziz Ansari.

“Brian Williams was never a smart guy but always passed himself off as such. People will learn the truth!” Trump responded, Wednesday afternoon, before directing a more personal response at Williams. “Brian, if I’m ‘well past the last exit to relevance’ how come you spent so much time reading my tweets?”

But he seemed at least momentarily to come to terms with the results of the election, finally adding, “Another four years -- not good for the country but we'll have to live with it!”