With the stakes so high, the state is likely to see tens of millions of dollars pour in from small donors and super PACs from both parties ahead of the Jan. 5 runoffs.

Already, high-dollar donors have begun lining up behind an effort to pour resources into the Georgia races, according to several Democratic donors and donor advisers, who described a flurry of phone calls on the matter to refocus funds. The anti-abortion group Women Speak Out PAC announced a $4 million expenditure on Thursday for the two races, for example, and the traditional GOP apparatus is already soliciting contributions.

“The fate of the Senate Majority is on the line in Georgia. If you don’t step up now, Schumer and the Dems take control,” the National Republican Senatorial Committee wrote in a text message to donors Thursday afternoon, with a link to the committee’s donation page.