Republican candidate for U.S. Senate Mississippi State Sen. Chris McDaniel casts his ballot at the George Harrison Building on June 24, 2014 in Ellisville, Mississippi.  Tea Party-backed republican candidate for U.S. Senate, Mississippi State Sen Chris McDaniel is battling against incumbent U.S. Sen Thad Cochran (R-MS) in a tight race.
UNITED STATES - MARCH 06: Speaker of the House Paul Ryan, R-Wis., right, and House Majority Leader Kevin McCarthy, R-Calif., conduct a news conference in the Capitol after a meeting of the House Republican Conference on March 06, 2018. (Photo By Tom Williams/CQ Roll Call)
on May 17, 2017 in Washington, DC.
Secretary of State Rex Tillerson listens as President Donald Trump speaks during a cabinet meeting at the White House, Monday, Oct. 16, 2017, in Washington. (AP Photo/Evan Vucci)
UNITED STATES - SEPTEMBER 19: Michael Cohen, a personal attorney for President Trump, and his lawyer Stephen Ryan, off camera, address the media in Hart Building after the Senate Intelligence Committee meeting to discuss Russian interference in the 2016 election was postponed on September 19, 2017. (Photo By Tom Williams/CQ Roll Call)
on January 16, 2018 in Washington, DC.
WASHINGTON, DC - OCTOBER 22:  Chairman Trey Gowdy (R-SC) and Co Chairman Elijah Cummings (D-MD) argue while former Secretary of State Hillary Clinton testifies before the House Select Committee on Benghazi on Capitol Hill in Washington, DC Thursday October 22, 2015. (Photo by Melina Mara/The Washington Post)
WASHINGTON, DC - DECEMBER 13:  Sen. Bernie Sanders (I-VT) speaks during a rally against the Republican tax plan on December 13, 2017 in Washington, DC. (Photo by Zach Gibson/Getty Images)
on March 1, 2018 in Washington, DC.
on March 2, 2017 in Washington, DC.
on February 28, 2018 in Washington, DC.
on February 23, 2018 in National Harbor, Maryland.
on February 28, 2018 in Washington, DC.