Today’s installment of campaign-related news items that won’t necessarily generate a post of their own, but may be of interest to political observers:

* The first of nine summer recall elections for Wisconsin state senators is today, with incumbent state Sen. Dave Hansen (D) facing a Republican challenger. Polls suggest Hansen is favored to hang on to his seat.

* A new survey from Public Policy Polling shows Michele Bachmann has taken the national lead in the race for the Republican presidential nomination. She enjoys 21% support in the poll, one point ahead of Mitt Romney’s 20%. Rick Perry, who remains unannounced, is third with 12%, followed by Herman Cain with 11%. No other candidate reached double digits.

* With right-wing hostility towards a debt-ceiling compromise growing, RedState’s Erick Erickson announced yesterday his operation will not support any GOP Senate candidates who back Mitch McConnell as the caucus’ leader. The obstructionist Minority Leader is apparently not quite right-wing enough.

* Karl Rove’s attack operation, Crossroads GPS, is launching a new round of attack ads targeting 10 vulnerable Democratic House incumbents. Among other things, Crossroads blasts their votes in support of raising the debt ceiling (left unmentioned is the fact that Rove’s former boss signed debt-ceiling increases seven times in eight years).

* On a related note, Crossroads is also launching a Spanish-language ad in Hispanic-heavy markets, hoping to turn Latino voters against President Obama.

* Former Iowa First Lady Christie Vilsack (D) officially kicks off her congressional campaign today, and will take on right-wing Rep. Steve King (R) in the newly-redrawn 4th district next year.

* Speaking of Iowa, Texas Gov. Rick Perry (R) continues to reach out to Hawkeye State power-brokers, further evidence of his likely presidential campaign.

* Mitt Romney, meanwhile, doesn’t seem to be going all out in the first caucus state, but he reassured Iowans yesterday that they will see him as the campaign progresses.

* And in Michigan, a new statewide poll shows Romney leading President Obama, 46% to 42%. Obama won the state in 2008 by 16 points, and proceeded to rescue the automotive industry over Republican opposition.

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.