Rep. Betsy Markey (D-Colo.) raised $505,000 in the first three months of 2010, according to the Washington Post.

Even more interesting, the campaign says more than $355,000 of the money came in during the final two weeks of the quarter -- after Markey announced on March 18th she was voting for the healthcare reform bill. She voted against the legislation in November. 

Markey, a first-term lawmaker, was subject of a front-page profile in Monday's Post.

She is a top GOP target this cycle and has been criticized for her healthcare vote.

Her staff touted the Markey's support in the local Colorado press.

"There have been plenty of big bills come through Congress this year, but I don't think I've ever seen grass-roots support spring up like this," Markey campaign spokeswoman Anne Caprara told the Fort Collins Coloradoan.