THURSDAY’S CAMPAIGN ROUND-UP….Today’s installment of campaign-related news items that wouldn’t generate a post of their own, but may be of interest to political observers.

* In Pennsylvania, a new Rasmussen poll shows Sen. Arlen Specter with a comfortable lead over Rep. Joe Sestak in a Democratic primary, but the margin is shrinking. The incumbent, a former Republican, now leads by 19 points, 51% to 32%.

* On a related note, Sestak continues to push the idea that Specter is a “flight risk” for Democrats.

* New Hampshire’s state attorney general, Kelly Ayotte (R), has been sought out by party leaders to run for the Senate next year against Rep. Paul Hodes (D-N.H.), and she’s apparently thinking about it.

* Illinois’ state attorney general, Lisa Madigan (D), is still eyeing next year’s Senate race, but is reportedly telling party leaders she expects an Obama endorsement and a clear primary field. With state Treasurer Alexi Giannoulias already running hard, Madigan’s conditions may be hard to meet.

* The Republican primary in next year’s Senate race in Missouri remains very much in flux. Thomas Schweich dropped out of the race last week, but state Sen. Chuck Purgason is poised to jump in.

* Have we seen the last of former presidential hopeful John Edwards’ political career? To hear the former North Carolina senator tell it, his future is unclear. “Sometimes you just keep your head down and work hard and see what happens,” Edwards told the Washington Post.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.