
Nate Cohn @Nate_Cohn
Democrats hold a modest lead in several closely contested races for U.S. Senate, with Joe Biden ahead as well Ariz.: Kelly+8, 50-42; Biden+9, 50-41 Maine: Gideon+5, 49-44; Biden+17, 55-37 N.C.: Cunningham+5, 42-37; Biden+1, 45-44 — PolitiTweet.org