WEDNESDAY’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.

* A new Quinnipiac poll in New Jersey finds a gubernatorial race that keeps getting more competitive. A month ago, Quinnipiac found Chris Christie (R) leading Gov. Jon Corzine (D) by 10. Now, Christie’s lead is down to four: 43% to 39%. Independent Chris Daggett is third with 12%.

* Speaking of competitive gubernatorial races, a new survey from Public Policy Polling shows Bob McDonnell’s (R) lead over Creigh Deeds (D) down to five points, 48% to 43%.

* In New Jersey, the DNC has a new ad, highlighting an instance in which Christie cut off a cancer survivor when he got impatient with her question.

* California Attorney General Jerry Brown (D) has, as a practical matter, been running for governor for most of the year, but yesterday he formally launched an exploratory committee.

* A new Rasmussen poll shows Sen. Blanche Lincoln (D) struggling in her re-election bid, trailing all of her would-be Republican challengers in hypothetical match-ups.

* Given that nearly all of the candidates have low name recognition, the race is very likely to change dramatically in the coming months, but a new Quinnipiac poll shows state Attorney General Tom Corbett (R) as the leading gubernatorial candidate in Pennsylvania’s 2010 race.

* And in Minnesota, former Sen. Norm Coleman (R) is doing his part to help Rep. Michele Bachmann (R) raise money for her re-election fight.

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.