Monday’s campaign round-up

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:

* Apparently one Super PAC isn’t quite enough for Mitt Romney, who now has another Super PAC investing another $455,000 in pro-Romney television ads in South Carolina this week.

* The latest numbers from PPP show Romney ahead in South Carolina with 29%, followed by 24% for Newt Gingrich. Ron Paul and Rick Santorum are roughly tied for third place, with 15% and 14% support, respectively.

* After taking considerable heat from the right, Gingrich is now urging his Super PAC to “either edit out every single mistake or to pull” the 28-minute short film on Romney’s Bain background.

* Every GOP presidential candidate sought the support of Tom Davis, an influential South Carolina state senator, and over the weekend, he threw his support to Ron Paul.

* At the national level, the latest CNN poll shows Romney leading Gingrich, 34% to 18%. Paul and Santorum are tied for third at 15%.

* A new national Fox News poll shows a similar race, with Romney out front with 40%, followed by Santorum, Gingrich, and Paul at around 14% each.

* The same Fox News poll shows President Obama leading all of his Republican rivals, though the margin over Romney is only one point, 46% to 45%.

* A federal district court judge late last week rejected Rick Perry’s lawsuit on ballot access in Virginia. GOP voters in the commonwealth, then, will have just two choices: Romney or Paul.

* Sen. Jim DeMint (R-S.C.) officially announced that he will not endorse anyone in the Republican presidential race in advance of this weekend’s primary.

* In Massachusetts, Sen. Scott Brown (R) and Elizabeth Warren (D) want to keep outside groups from advertising in their Senate race this year.

* And in related news, Warren hosted a “money bomb” over the weekend and fared quite well: she raised more than $100,000.