PresidentDonald Trump hit back at Democratic Rep. Jasmine Crockett on Tuesday, calling her "avery low IQ person" during an interview on CNBCs "Squawk Box.""I won the election in a landslide," Trump said. "And obviously thats only, you know, were only six months in, but my poll numbers are better now, much better than during the election. Part of that is because the Democrat Party is self-destructing. I mean, when you have low IQ, people like Crockett, I wonder if shes any relation to the late, great Davy Crockett, who is a great, great, a great gentleman. I wonder if shes got any relationship to Davy Crockett, the great old Davy Crockett."During aliberal rally on Sunday, Crockett called Trump a "piece of s---."TRUMP MOCKS DEMOCRATS' ELECTION LOSSES WHILE WARNING ABOUT AOC AND CROCKETT'S RADICAL INFLUENCE"Listen, Donald Trump is a piece of s---. OK, we know that," she said to a cheering crowd atthe Phoenix stop of MoveOns "Wont Back Down Tour."Crockett also said that Democrats must be "aggressive.""But what are we going to need to do then?" she asked. "For me, its getting aggressive."CLICK HERE FOR MORE COVERAGE OF MEDIA AND CULTUREOn Tuesday, Trump said Crockett was "one of the leaders" of the Democratic Party, which he argued was "lost.""But you have this woman, Crockett, shes a very low IQ person," the president said. "Somebody said the other day shes one of the leaders of the party. I said, you got to be kidding. Are they? The Democrats are lost. They have Trump derangement syndrome so bad that they cant walk. They cant talk. They dont know where theyre going. [Senate Minority Leader Chuck] Schumer is finished. Schumer look, I watched him the other day. Hes lost all of his confidence."JASMINE CROCKETT MOCKS TRUMP, SAYS HE'S THREATENED BY HER 'EFFECTIVE' MESSAGE"Squawk Box"host Joe Kernen said that it would be hard for Trump to break a 60 percent approval rating in any pollbecause of "TDS," or "Trump derangement syndrome," but the president contended that the country is doing better than ever."One year ago, one year ago, our country was dead," Trump said. "Now we have the hottest country anywhere in the world by far. And that was told to me by every leader of NATO, which theyd do whatever I want that was told to me by the king of Saudi Arabia, by the leaders of UAE, by the leader of Qatar, by many, many. We were a dead country one year ago. Today, were the hottest country anywhere in the world. And Im very happy to help."