Complex sentence: Jim Feldkamp is the Republican candidate for the United States House of Representatives for Oregon's 4th District in 2004 and is currently running for the same seat in 2006, challenging long-term incumbent Peter DeFazio.
Split into simpler sentences: Jim Feldkamp is the Republican candidate for the United States House of Representatives for Oregon's 4th District in 2004. He is currently running for the same seat in 2006, challenging long-term incumbent Peter DeFazio.