President Donald Trump accused Hillary Clinton of colluding with Russia to sway the 2016 election during a rally in Erie, Pennsylvania Wednesday night.

"There was collusion between Hillary, the Democrats and Russia," Trump said. "There was a lot of collusion with them and Russia and lots of other people."

Trump, of course, presented no evidence to support this, because he doesn't have any.

Clinton fired back at Trump with a savage tweet Thursday afternoon.

"Seriously, you asked Russia to hack me on national television."

Clinton's tweet spread like wildfire.

She's free to say what she wants and people love it.

A couple people suggested Clinton sue Trump for defamation, and she could actually have a case.

It's Trump's favorite solution to everything, after all.

Clinton was not the only one to respond to Trump's blatant distortion of the truth.

“Delusion, not collusion,” Clinton spokesman Nick Merrill said of Trump, adding that the president is living in the land of make-believe.

Just for fun, let's review exactly what Trump said.

On July 27, 2016, then-candidate Trump explicitly instructed Russia to hack Clinton and turn over her emails.

“I will tell you this, Russia: If you’re listening, I hope you’re able to find the 30,000 emails that are missing,” Trump said at a news conference in Florida. “I think you will probably be rewarded mightily by our press.”

Later that day, Trump campaign communication advisor Jason Miller said the president was kidding, sort of.

“To be clear, Mr. Trump did not call on, or invite, Russia or anyone else to hack Hillary Clinton’s e-mails today,” Miller said on Twitter. “Trump was clearly saying that if Russia or others have Clinton’s 33,000 illegally deleted emails, they should share them.”