Democratic Rep. Maxine Waters alleged Sunday that President Donald Trump is "racist" because he questioned her IQ level. On Saturday night, President Trump addressed the annual Gridiron Club Dinner, an event that is known for its humor. Trump took jabs at his own administration and many of his rivals, and at one point joked that Rep. Waters should "immediately take an IQ test." [Snip] The California Democrat did not think the joke was funny and questioned Trump’s own mental agility before accusing him of racism.