Senate Majority Leader Mitch McConnell (R-Ky.) should let the Senate vote on the CASH Act, which would increase stimulus checks from $600 to $2,000, former House Speaker Newt Gingrich said Wednesday. Control of the Senate in the next Congress could hinge on whether McConnell does so, Gingrich alleged, pointing to tough reelection battles that Sens. Kelly Loeffler (R-Ga.) and David Perdue (R-Ga.) face. “I would beg him to bring up $2,000 payment as a free-standing, independent vote,” so Loeffler and Perdue would not have to return to Washington to vote before the runoffs, Gingrich said on Fox News. If not, Democrat Senate candidates Raphael Warnock and Jon Ossoff, who have said they support the higher payments, “can attack Mitch McConnell for the next six days, and I think it’s very hard at that point to win the race,” Gingrich added. Warnock, Ossoff, and other Democrats criticized McConnell for blocking a unanimous …