President Donald Trump's inaugural weekend was late night TV's target on Monday with Trevor Noah, Jimmy Kimmel, Seth Meyers and Conan O'Brien particularly zoning in on "Alternative Facts" presented by Trump's Press Secretary Sean Spicer and President Counselor, Kellyanne Conway.

Noah joked about Conway's mannerisms on Sunday's episode of NBC's "Meet the Press" as she presented her "Alternative Facts."

"I like seeing Kellyanne Conway taste the bulls--t in her mouth," Noah said.

"Daily Show" correspondent Desi Lydic jumped in on the action with a segment covering various other funny "actual facts" about the inaugural weekend.

Jimmy Kimmel also ripped the "Alternative Facts" that Trump's administration shared in regards to crowd size at the 45th President's inauguration. He shared a clip of Spicer concluding that "the number of attendees cannot be calculated, as the parks association does not keep count – though he can confirm that this was the biggest crowed ever. Period."

Kimmel also shared some personal "Alternative Facts" about himself.

Seth Meyers took a dip into the "Alternative Facts" fountain, too. Meyers revisited moments from The Women's March on D.C., as well as highlighting Trump's statement at his visit to CIA offices over the weekend about crowd size at his inaugural parade with an edited clip featuring Today Show's Al Roker offering Vice President Mike Pence some candy.

And finally, Conan O'Brien sent his friend Triumph the Insult Dog to the inauguration where he captured some priceless moments.

“Look at this inspiring mass of overweight, overage, predominantly white humanity” and referring to the Trump son’s as the “less motivated Menendez brothers”

Watch the clip above.