Thursday's campaign round-up

Rep. Henry A. Waxman speaks during a news conference on Capitol Hill in Washington, June 18, 2012.
* Rep. Henry A. Waxman (D-Calif.), one of Congress' great progressive champions, announced this morning he will retire at the end of this term. His seat is expected to remain in Democratic hands.
* The latest PPP poll shows Senate Minority Leader Mitch McConnell (R) with the narrowest of leads against Kentucky Secretary of State Alison Lundergan Grimes (D), 45% to 44%.
* Speaking of close Senate races, Public Policy Polling also found Michelle Nunn (D) with narrow leads against each of the Republican candidates in Georgia's open U.S. Senate race. If she prevails, Nunn would flip the seat from "red"to "blue."
* In Florida, a new Quinnipiac poll shows former Gov. Charlie Crist (D) with an eight-point advantage over incumbent Gov. Rick Scott (R), 46% to 38%.
* Ed Gillespie (R) seems to be facing long odds in Virginia this year taking on Sen. Mark Warner (D), and it won't help that Libertarian Robert Sarvis, fresh off his gubernatorial campaign, is launching a Senate bid this year.
* In Oklahoma, former Gov. Frank Keating (R) considered launching a U.S. Senate campaign, but decided it against it. He'll remain head of the American Bankers Association.
* And in Nevada, former Lt. Gov. Sue Wagner announced yesterday she's left the Republican Party and is now registered as non-partisan. "I did it as a symbol, I guess, that I do not like the Republican Party and what they stand for today," Wagner said. "I've been a Republican all my life. My dad was active (in the GOP) in the state of Maine where I was born. It was more of a moderate, liberal Republican Party."