Alabama:Richard Shelby - 9% approvalJeff Sessions - 8% approvalAlaska:Lisa Murkowski - 70% approvalMark Begich - 75% approvalArizona:John McCain - 25% approvalJeff Flake - 30% approvalArkansas:Mark Pryor - 23% approvalJohn Boozman - 21% approvalCalifornia:Dianne Feinstein - 20% approvalBarbara Boxer - 46% approvalColorado:Mark Udall - 73% approvalMichael Bennet - 66% approvalConnecticut:Richard Blumenthal - 55% approvalChris Murphy - 66% approvalDelaware:Tom Carper - 38% approvalChris Coons - 50% approvalMap is the average of both percentages: