New York City Mayor Michael Bloomberg's super PAC will back Rep. Robert Dold (R-Ill.) with $730,000 worth of television ads, according to three GOP sources tracking media buys.
Independence USA PAC's most recent spot describes Dold as a Member with "courage, independence, results."
Dold is seeking re-election in the Illinois 10th, a heavily Democratic district north of Chicago. President Barack Obama won the 10th district by more than 25 points in 2008, but Dold is locked in an extremely competitive and expensive race against businessman Brad Schneider (D). Roll Call rates this race as a Tossup.
Online records show Bloomberg's super PAC has already bought direct mail and online advertising to support Dold.
A spokesman from Independence USA PAC could not be reached for comment.