Raphael Warnock defeats Herschel Walker in Georgia's runoff election
Raphael Warnock defeats Herschel Walker in Georgia's runoff election

The results of the nation's final midterm election are in.

Georgia Senator Raphael Warnock has won re-election in a closely watched runoff race, defeating Republican challenger Herschel Walker.

With Warnock's win, Democrats now hold a pivotal 51-seat Senate majority.

ABC's Justin Finch is in Washington with more.