Create a check on House Democrats
In January, Democrats will control two of the three branches of legislative policy. Maintaining a Republican-controlled Senate would allow for a check on their power, and encourage bipartisanship. Despite being a relative moderate, Joe Biden ran for President with the promise of proposing legislation supported by some of the more radical Democrats. Hefty climate change reform, healthcare reform, and a possible fight over the Supreme Court could all be coming under a Biden Presidency, and a Republican-controlled Senate would put a check on his more radical policies. Not only that, but a Democratically-controlled House on the heels of a Trump presidency could swiftly try to undo policies made under the 45th President. Radical Democrats have taken over the Democratic party, and the Republicans need a majority in the Senate to prevent the more radical wing from having unmitigated power. Georgia needs to elect one or both Republicans in its Senate runoffs to ensure a check on the radical left and to not allow the US to be controlled by left-leaning Democrats.
Senate Majority Leader Mitch McConnell has shown a disregard for the norms of the Senate, stonewalling perfectly reasonable legislation and Supreme Court picks made by Democrats. Bipartisan legislation stands no chance with McConnell in the Senate, and Biden should not rely on Republicans to help him out during his Presidency.
Rejecting the premises