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Sen. David Perdue (R-Ga.) on Tuesday became the fourth and final candidate in Georgia's looming Senate runoffs to endorse increasing individual COVID-19 stimulus checks from $600 to $2,000, a measure supported by President Trump.

Perdue's fellow incumbent Republican, Sen. Kelly Loeffler (R-Ga.), tweeted her support for the boosted direct payments shortly before Perdue, while their respective Democratic challengers, Jon Ossoff and Raphael Warnock, were already on board. Ossoff called on Perdue to back the increase earlier Tuesday.

While the candidates' stances on the issue will likely have an effect on the tightly contested runoffs, Loeffler and Perdue are sitting senators who will vote on the measure if it's brought to the floor. They join Sens. Marco Rubio (R-Fla.) and Josh Hawley (R-Mo.) in supporting bigger checks, which means it's likely eight more GOP senators would have to join them to get the two-thirds majority required for passage.