Rep. Paul RyanPaul Davis RyanRepublicans are avoiding gun talks as election looms The Hill's 12:30 Report Flake to try to force vote on DACA stopgap plan MORE (R-Wis.) has a new challenger: Amar Kaleka (D), whose father was murdered in last year's Sikh temple massacre outside Milwaukee.

Kaleka, a filmmaker, told The Associated Press that he would run against the former vice presidential candidate and would file paperwork on Wednesday.

"There's a fever in the nation, and specifically in this district, for our leaders to stop playing politics and do their jobs," Kaleka said. "All I want to do is bring democracy — a government of, for and by the people — back to America."

Kaleka, an Emmy-winning documentary filmmaker who's lived in Southern California in recent years, blamed Ryan for the ongoing government shutdown.

His father, Satwant Singh Kaleka, was a co-founder of a Sikh temple in suburban Milwaukee. He was one of six who was murdered by a white supremacist last year.

Ryan will be hard to beat — while his district is only slightly GOP-leaning, he's comfortably won reelection since he first won the seat. Kaleka might face a primary as well — Ryan's 2012 challenger has indicated he'll run again — but says he expects the national party will support him.