President Obama will headline a fundraiser for House Democrats' campaign arm in May, according to an invitation obtained by Post Politics, as the president continues his push to help his party in its steep uphill fight for the lower chamber.

(AP Photo/Susan Walsh)

The May 19 fundraiser will be held at the home of Democratic donors Lora and Jeff Drezner in Potomac, Md. House Minority Leader Nancy Pelosi (Calif.), Democratic Congressional Campaign Committee Chairman Steve Israel (N.Y.) and Rep. Chris Van Hollen (Md.) will attend.

Tickets for the event range from $10,000 to $32,400.

Obama has committed to doing at least six fundraising events for the DCCC in the coming months. This is the fourth one to be announced publicly.

Democrats are coming off a disappointing loss in Florida's 13th district special election. Now-Rep. David Jolly (R) defeated Democrat Alex Sink despite the Republican running a lackluster campaign and struggling to raise money. Obama's health-care law was a central issue in the campaign; Republicans routinely sought to tether Sink to the law, which polls show is unpopular.

House Democrats need to pick up 17 seats to win back the House majority this fall -- a goal that even leading Democrats privately acknowledge is near impossible. But the DCCC has outraised the National Republican Congressional Committee by nearly $16 million this cycle.