FRIDAY’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.

* Rep. William Delahunt (D) of Massachusetts has been rumored as a likely retirement for quite some time, and last night, we learned that the incumbent lawmaker will not seek re-election in November.

* Texas is obviously friendly territory for Republicans on a statewide basis, but a Rasmussen poll shows incumbent Gov. Rick Perry (R) leading Houston Mayor Bill White (D) by only six points, 49% to 43%. Both Perry and White won their respective primary contests this week.

* Sen. Blanche Lincoln (D) is facing an uphill re-election fight, but her campaign got a bit of a boost yesterday when former President Bill Clinton announced he will support Lincoln.

* Florida Gov. Charlie Crist’s (R) criticism of Marco Rubio (R) is getting a little more aggressive as Crist falls further behind in their Senate primary. The governor said of the former House Speaker, “When this guy calls himself the real conservative in the race, I’ve got to point out that it’s the opposite.”

* In Arizona, former Rep. J.D. Hayworth (R) is using the movie Avatar to go after Sen. John McCain (R). A new ad depicts McCain with a blue face, and features copy that reads, “John McCain, nominee for Best Conservative Actor.”

* Speaking of McCain, it seems the team that ran his 2008 presidential campaign has largely signed on as aides to Tim Cahill’s independent gubernatorial campaign in Massachusetts.

* Kentucky Lt. Gov. Daniel Mongiardo (D) has launched his first TV ad in support of his Senate campaign, and like his primary challenger, he’s exploiting public disappointment in Republican Sen. Jim Bunning’s recent antics.

* In Pennsylvania, Rep. Joe Sestak’s (D) Senate primary bid hasn’t had much to celebrate lately, so the campaign was no doubt delighted to see an endorsement from the National Organization for Women.

* And in Wyoming, it looks like Gov. Dave Freudenthal (D) will not seek a third term. The Democratic bench in the state is a little thin, and Republicans expect to win the governorship in Freudenthal’s absence.

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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.