UPDATED 2:00 PM PT — Tues. June 12, 2018
Senator Mitch McConnell becomes the longest-serving Senate Republican leader in history, surpassing former Senator Bob Dole.
The Senate majority leader is serving his 4,179th day in the position after taking over in January 2007.
Senate Whip John Cornyn is expected to mark the record-setting tenure with a floor speech.
McConnell led his party in the Senate through two political revolutions — the Tea Party in 2009 and the election of President Trump in 2016.
The senator also blocked former President Obama’s nominee to succeed the late Antonin Scalia on the Supreme Court.