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 York shows an extremely competitive Democratic primary in next year’s Senate race, if, as expected, Rep. Carolyn Maloney challenges appointed Sen. Kirsten Gillibrand. At this point, about half New York Dems are undecided, but among those with a preference, Maloney edges Gillibrand, 27% to 23%. Both easily lead Rep. Peter King (R) in a hypothetical general election match-up.

* Sen. John Cornyn (R-Texas), chairman of the National Republican Senatorial Committee, has vowed to support former Sen. Norm Coleman (R-Minn.), no matter how long he keeps fighting last year’s election results.

* On a related note, Cornyn’s NRSC continues to support Coleman’s efforts financially, directing nearly $1 million to the former senator last month alone.

* The League of Conservation Voters has let members of Congress know that anyone who votes against the Waxman-Markey climate change bill will be automatically ineligible for an LCV endorsement next year.

* Is Mississippi Gov. Haley Barbour (R) laying the groundwork for a presidential campaign? Probably.

* And speaking of 2012, the latest poll from the Pew Research Center asked Republicans about their support for prominent GOP officials. Alaska Gov. Sarah Palin (R) was easily the most popular figure in her own party, with Mitt Romney a distant second.

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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.