Paul Ryan's House challenger will be in Danville, Ky., site of the vice presidential debate on Thursday, asking for a debate of his own.

Rob Zerban, the Democrat challenging Rep. Ryan, R-Wis., will be doing national interviews in Kentucky, telling reporters that Ryan has neglected his home-district House campaign. Ryan, who presumably has his hands full running for vice president and debating Joe Biden, has refused to debate Zerban, so far.

Tune in to ABCNews.com on Thursday for livestreaming coverage of the 2012 Vice Presidential Debate moderated by ABC's Martha Raddatz in Danville, Ky. Coverage kicks off with ABC News' live preview show at noon, and full debate coverage begins at 8 p.m.

Zerban has circulated a petition among his supporters demanding a debate.

"The reason that Rob is going down [to Kentucky] is that Ryan has refused to campaign in the district or debate him, despite spending money on TV in the district, so we're trying to call attention to that," Zerban spokesman TJ Helmstetter told ABC News.

Zerban has not yet secured a spot inside the building where the debate will be held, but he'll be available outside. He'll appear Thursday morning on MSNBC's "The Rundown" and later on "Hardball," his spokesman said.

Zerban's campaign outraised Ryan's House campaign by more than $200,000 in the third quarter of 2012.

Ryan won reelection with 64 percent of the vote in 2008. His race against Zerban is not thought to be competitive.