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:

* In the hopes that he’ll start embarrassing himself less often and make fewer mistakes, Herman Cain has decided to spend less time on the campaign trail.

* As this photo helps demonstrate, Elizabeth Warren’s (D) Senate campaign in Massachusetts will not lack volunteers.

* If my count is right, the Cain campaign has now taken five different positions on abortion rights over the last two weeks. The Republican presidential hopeful said on Wednesday that he supports “no exceptions,” but yesterday, his staff said he supports exceptions for rape, incest, and to save the life of the mother.

* In Arizona, a CNN poll this week found President Obama running ahead of the Republicans’ top tier, leading Mitt Romney by five points, Rick Perry by six, and Cain by seven.

* The same poll found Cain narrowly leading Romney in the state, 25% to 24%.

* In Nevada, one of the nation’s most closely watched U.S. Senate races continues to get more interesting. Public Policy Polling found this week that Rep. Shelley Berkley (D) and appointed Sen. Dean Heller (R) are now tied at 45% each.

* On a related note, PPP also found Obama and Romney tied in Nevada at 46% each.

* In Wisconsin, Public Policy Polling found Gov. Scott Walker (R) hanging on with the threat of a recall hanging overhead. A 49% plurality does not want to see the governor recalled before the end of his first term, while 48% supports a recall.

* Despite Republican presidential hopeful Jon Huntsman’s focus on the New Hampshire primary, he’s only received $1,000 in donations from within the Granite State.

* And upcoming the “Lincoln-Douglas” debate between Cain and Newt Gingrich next week has turned into quite a fundraiser for the Texas Tea Party Patriots PAC, which is selling tickets priced between $200 and $1,000.

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.