The consequential Jan. 5 showdowns will test anew the suddenly-swing status of Georgia, which is on the cusp of delivering its 16 electoral votes to Joe Biden. And the opening moves for the seats held by Republican Sens. Kelly Loeffler and David Perdue set the tone for a frenzied race to the finish in 2021.

Both Democratic contenders — Jon Ossoff and Raphael Warnock — have already aired ads previewing their opening arguments. Outside groups have started flooding the state with millions in spending. And major political players are ready to pitch Georgians on why the race matters.

Case in point: Former presidential contender Andrew Yang sent word over the weekend that he's moving to Georgia for the home stretch — and he's asking his supporters to follow him.

As Georgia's attention was still focused on the presidential race, the quartet of campaigns began to sketch out the contours of the 2021 contest.