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:
* As Wisconsin voters head to the polls to vote in recall primaries today, Gov. Scott Walker (R) is already attacking Milwaukee Mayor Tom Barrett (R) with a new slogan: "Forward -- Walker;" "Backwards -- Barrett." I thought the right considered "forward" code for "communism"?
* Mitt Romney was pressed last night for an explanation for the "over $1.5 million in foreign tax credits" he's received since 2000. Expect to hear more about this in the coming months.
* Rick Santorum hid his Romney endorsement about as well as he possibly could, sending an email in the middle of the night with a non-descript subject line with no advance notice to the media.
* In Ohio, Public Policy Polling shows President Obama leading Romney by seven points, 50% to 43%, thanks in large part to an enormous gender gap.
* Speaking of Ohio, is Sen. Rob Portman (R) auditioning to be Romney's running mate? It sure looks like it.
* In Virginia's closely watched U.S. Senate race, a new Washington Post poll shows Tim Kaine (D) and George Allen (R) tied at 46% each.
* New Jersey Gov. Chris Christie's (R) recent controversies apparently haven't hurt his approval rating, which continues to inch higher for reasons I don't understand.
* And in Indiana, Sen. Dick Lugar, who may well lose in a GOP primary today, launched one last campaign ad this week, targeting state Treasurer Richard Mourdock for wanting to cut Social Security. "Heaven help us," an elderly woman says in the ad, "because Mourdock won't."