Sen. John McCain (R-AZ) is the least popular senator in the United States with his constituents, according to a new poll.
Democratic-leaning Public Policy Polling found that 30 percent of Arizonans approve of McCain's job performance while 54 percent disapprove -- the worst net approval in the country, according to the firm's tracking of approval ratings for senators.
McCain is almost equally unpopular with Republicans (35 percent approve; 55 percent disapprove), Democrats (29 percent-53 percent) and independents (25 percent-55 percent).
In hypothetical 2016 reelection match-ups, McCain trails both former Surgeon General Richard Carmona, who ran against McCain's junior colleague Jeff Flake in 2012, and former Rep. Gabby Giffords.
The poll, conducted from Feb. 28 to March 2, surveyed 870 Arizona voters. It has a margin of error of 4.9 percentage points.