Rep. Tammy Baldwin (D-Wis.) raised $2.2 million for her Senate campaign, her strongest quarter yet — and one that came while she was competing with the state's gubernatorial recall race for time and resources.

This is the second quarter in a row for which Baldwin has topped $2 million, though it's also the second consecutive quarter that she spent much of that. Baldwin now has $3.5 million cash on hand, an increase of just $600,000 from three months ago. Her campaign uses direct mail solicitation, an expensive fundraising method that often racks up huge topline numbers but costs nearly as much as it brings in.

The favorite of the liberal netroots is running neck and neck with former Wisconsin Gov. Tommy Thompson (R) in two polls released this week, while she has the edge over the other three Republicans in the race.

The Hill rates the race a "toss-up."