[['district', 'incumbent', 'party', 'first elected', 'results', 'candidates'], ['wisconsin 1', 'mark neumann', 'republican', '1994', 'retired to run for us senate republican hold', 'paul ryan (r) 57.1% lydia spottswood (d) 42.7%'], ['wisconsin 2', 'scott klug', 'republican', '1990', 'retired democratic gain', 'tammy baldwin (d) 52.5% josephine musser (r) 47.4%'], ['wisconsin 3', 'ron kind', 'democratic', '1996', 're - elected', 'ron kind (d) 71.5% troy brechler (r) 28.4%'], ['wisconsin 4', 'jerry kleczka', 'democratic', '1984', 're - elected', 'jerry kleczka (d) 57.9% tom reynolds (r) 42%'], ['wisconsin 5', 'tom barrett', 'democratic', '1992', 're - elected', 'tom barrett (d) 78.2% jack melvin (r) 21.6%'], ['wisconsin 6', 'tom petri', 'republican', '1979', 're - elected', 'tom petri (r) 92.6% timothy farness (t) 7.2%'], ['wisconsin 7', 'dave obey', 'democratic', '1969', 're - elected', 'dave obey (d) 60.6% scott west (r) 39.3%']]
4 Incumbent were Democratic
4 [ENT] were [ENT]