Democrat Rob Zerban, who is challenging vice presidential nominee Paul Ryan (R) in Wisconsin’s 1st district, will travel to Kentucky today for the vice presidential debate, his campaign announced.

Ryan, who is running simultaneously for the House and the White House, is still heavily favored in the race. But Zerban has proven to be a formidable candidate, outraising the well-funded Ryan in the third quarter by more than $200,000, bolstered by the support of liberal groups such as former Sen. Russ Feingold’s Progressives United and the Progressive Change Campaign Committee. As

. But Zerban has proven to be a formidable candidate, outraising the well-funded Ryan in the third quarter by more than $200,000, bolstered by the support of liberal groups such as former Sen. Russ Feingold’s Progressives United and the Progressive Change Campaign Committee. As Roll Call recently reported, Ryan has made ad reservations in the state to boost his re-election cause.

Roll Call rates this race as Safe Republican.