Elaine Chao

On Thursday, the U.S. Secretary of Transportation andwife of the Senate Majority Leader Mitch McConnell, Elaine Chao, announced her resignation on Twitter.

"Yesterday, our country experienced a traumatic and entirely avoidable event as supporters of the President stormed the Capitol building following a rally he addressed. As I'm sure is the case with many of you, it has deeply troubled me in a way that I simply cannot set aside," Chao wrote. "Today, I am announcing my resignation as U.S. Secretary of Transportation, to take effect on Monday, January 11, 2020." Chao added she would help announced successor Mayor Pete Buttigieg with "taking on the responsibility of running this wonderful department."