TUESDAY’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.

* Will Arlen Specter enjoy union support next year if he continues to oppose EFCA? Joe Sestak, who keeps inching closer to the race, doesn’t think so.

* On a related note, a top AFL-CIO official was more explicit regarding Specter: no EFCA support, no campaign support.

* Both Howard Dean and James Carville have urged Specter to earn party support by voting with his new party. What a concept.

* Former Florida House Speaker Marco Rubio (R) announced this morning that he’s running for the Senate next year, setting up a heated fight against Gov. Charlie Crist (R), who’s also likely to run.

* A new poll in New Hampshire offers Republicans hope against Rep. Carol Shea-Porter (D-N.H.) next year. The same poll offered the GOP additional good news, with former Sen. John Sununu leading Rep. Paul Hodes (D-N.H.) in a hypothetical match-up, 46% to 41%.

* Sen. Jim Bunning (R-Ky.) insisted this morning that he is, despite rumors to the contrary, seeking re-election next year.

* And speaking of Kentucky, Rep. Ron Paul’s son, Rand, told CNN yesterday he’s poised to run for the Senate in the Bluegrass State, too. Rand Paul, an ophthalmologist, said he would seek to raise money for the race by turning to his father’s supporters.

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.