TUESDAY’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.

* Polling in New Jersey’s gubernatorial campaign remains volatile. While a poll released yesterday showed Gov. Jon Corzine (D) up by nine, new surveys from Rasmussen and Public Policy Polling show Chris Christie (R) with narrow leads.

* Corzine conceded yesterday that if he had it to do over again, he would have re-worded his “threw his weight around” ad.

* In related news, with Republicans turning their guns on independent candidate Chris Daggett in New Jersey, Daggett’s negative ratings have gone up sharply lately.

* In New York’s 23rd, actor/politician Fred Thompson (R) has thrown his support to Conservative Party nominee Doug Hoffman. So has Minnesota Gov. Tim Pawlenty (R).

* President Obama was in Miami last night, where he raised $1.5 million for Democratic House and Senate candidates.

* In Wisconsin, Lt. Gov. Barbara Lawton (D) announced yesterday that she is not running in next year’s open gubernatorial race. The decision makes it more likely that Milwaukee Mayor Thomas Barrett will be the Democratic frontrunner, though he has not yet announced his plans.

* In Massachusetts, a Rasmussen poll shows Gov. Deval Patrick (D) with weak re-election numbers, but he nevertheless leads in a three-way contest. The poll has the incumbent ahead with 34% support, followed by Christy Mihos (R) and Tim Cahill (I) with 23% each.

* And in New York City, Mayor Michael Bloomberg’s campaign is taking voter targeting efforts to new heights (or depths, depending on one’s perspective).

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.