"The League of Conservation Voters (LCV) launched an effort Wednesday to tip the scales in the close Missouri Senate race against Rep. Roy Blunt (R) by playing up oil-industry contributions to the conservative lawmaker.

LCV named Blunt to its 'Dirty Dozen' list of candidates whom it will work against in the 2010 cycle.

Blunt, who is in his seventh term, faces a tight contest this year against Democrat Robin Carnahan, who is currently Missouri's secretary of state. Incumbent Sen. Kit Bond (R) is not seeking reelection."

Ben Geman reports for E2 Wire in The Hill March 10, 2010. [2]