With money from outside groups now pouring into the western New York special election, Jane Corwin has loaned her campaign another half million dollars.

The GOP nominee in the May 24 special election has now loaned her campaign $2.46 million from her personal bank account to fuel a race she was largely expected to dominate.

The latest loan was disclosed in a Federal Election filing made public Friday. It comes as a flood of outside spending has turned the Buffalo and Rochester airwaves into a steady stream of campaign ads. And the spending is likely to intensify in the coming 11 days.

Democrats note that Corwin’s personal wealth complicates an emerging conservative attack against third-party candidate Jack Davis, who has promised to spend as much as $3 million in the special election.

“It’s spring and millionaire career candidate Jack Davis is trying to buy another office,” says the narrator in a television spot from American Crossroads, an outside group that has invested $650,000 in the election.

Democrats and their allies are spending as well.

The newly established House Majority PAC plans to begin running broadcast and cable television ads next week attacking Corwin’s support of the House Republican budget plan that would fundamentally re-shape Medicare. It was immediately unclear how much House Majority, one of Democrats’ answers to conservative groups like Crossroads, would spend.

The Democratic Congressional Campaign Committee already devoted $250,000 to television advertising, and the liberal group MoveOn.org sent a fundraising message to supporters Friday calling the race, “the most important battleground in the fight against Republican plans to abolish Medicare.”

MoveOn hopes to raise funds for the Working Families Party, which has endorsed Democratic nominee Kathy Hochul and is pushing get-out-the-vote efforts, among other things, on the ground.

“Our allies at the Working Families Party are running a massive on-the-ground campaign that could swing the election,” reads the MoveOn fundraising message. “But after Karl Rove’s corporate front group dumped $650,000 into the race this week, grassroots efforts are even more important — and they need help from progressives nationwide. This is a huge and urgent opportunity. PLEASE HELP!”