Americans in Georgia’s 6th district and South Carolina’s 5th district go to the polls Tuesday to vote in concurrent special elections in traditionally Republican strongholds. “Stock up on coffee. Poised to be a very late night,” said a Republican involved in the tight Georgia race between Democrat Jon Ossoff and Republican Karen Handel. “This race is truly too close to call — best guess is that Ossoff gets between 48-51 percent,” a Democrat said. The results will test President Trump’s agenda, with a party defeat likely to “rattle Senate Republicans as they try to jump-start legislation to overhaul the nation’s health-care law,” The Washington Post writes. The South Carolina race is less of a nail-biter, with the Republican candidate, Ralph Norman, expected to defeat Democrat Archie Parnell. But by exactly how much “can tell us how sour the national environment is for Republicans,” FiveThirtyEight writes.