Before that, Trump brought up Hayden Williams, a Leadership Institute field representative who was violently attacked in an incident captured on-camera last week while recruiting for a conservative student group at the University of California-Berkeley. They had complained when Trump said at a Hanoi news conference that he believed Kim had nothing to do with Warmbier's death.
Special counsel Robert Mueller and his team are expected to finish their investigation and issue a report in the coming weeks.
"In interviews over the past week, Republicans on Capitol Hill offered an array of reasons for their unflinching loyalty to Trump as the 2020 campaign begins to take shape: a deep-seated fear of his pull with their supporters in primary races; fraying consensus about conservatism as nationalism takes hold of the party; and shared partisan disdain for Trump's perceived enemies in the news media and the Democratic Party", Costa reported.
The speech was the longest ever CPAC speech and the longest speech given by a United States president at the conference.
President Trump took the stage and spoke for more than two hours on the third day of CPAC, touching on the growing dangers of socialism and conservative censorship.
Williams, who had a black eye, told Fox News that the men objected to a sign that said "Hate Crime Hoaxes Hurt Real Victims". "When the wind stops blowing, that is the end of your electric".
Snow possible across Kansas through Sunday morning
Temperatures in the northern part of the state could be as low as minus-13 (-25 Celsius) on Sunday night into Monday morning. More significant winter weather is heading for the Valley later this weekend and into early next week.
"They fight so hard on this witch hunt, this phony deal that they put together". Let's hurry up, darling, is the wind blowing today? He said that going off script got him elected. "I'd like to watch television". "I just want to be the Republican who runs against them". Can you imagine if we left interest rates where they were?
"This phony thing", Trump said of the Russian Federation probe, "looks like it's dying, so they don't have anything with Russian Federation there, no collusion".
Also, the president concluded a summit with North Korean leader Kim Jong Un in Hanoi without reaching a denuclearisation deal.
Trump hit all his usual marks: Former FBI Director James Comey is a liar, the investigation into the president is nothing more than a "witch hunt", and those who dare oppose him are "sick people".
"If you look at that first speech, that was very innocent compared to what's happening", Trump said.
Trump's face perspired as he lashed out at critics after a stressful week during which his former lawyer Michael Cohen accused the president in congressional testimony of breaking the law.