WASHINGTON, DC – MARCH 25: Sen. Chuck Grassley (R-IA) walks to a vote at the U.S. Capitol, March 25, 2019 in Washington, DC. Over the weekend, U.S. Attorney General William Barr sent a letter to Congressional leaders informing them that special counsel Robert Mueller’s investigation did not find evidence of direct collusion between Donald Trump’s 2016 campaign and Russia to influence the presidential election. (Photo by Drew Angerer/Getty Images)