ARIZONA: A poll from Arizona State University indicates a tight race in Arizona with Romney leading 42-40%, but it’s significant that the incumbent is only at 40%.

FLORIDA: “Florida prosecutors did not end up charging Rep. David Rivera (R-FL), but their 18-month investigation revealed that the former state lawmaker practically lived off campaign contributions for nearly a decade, the Miami Herald reports,” Political Wire writes.

GEORGIA: Cynthia McKinney’s planning a comeback run with the Green Party in GA-4.

MASSACHUSETTS: Elizabeth Warren is out with her second TV ad. It’s anti-Washington.

Scott Brown supports extending low student-loan interest rates. But he’s against Whole Foods, particularly its selling of “sustainable” fish.