[['district', 'incumbent', 'party', 'first elected', 'result', 'candidates'], ['california 9', 'don edwards', 'democratic', '1962', 're - elected', 'don edwards (d) 56.5% larry fargher (r) 43.5%'], ['california 15', 'john j mcfall', 'democratic', '1956', 're - elected', 'john j mcfall (d) 53.8% sam van dyken (r) 46.2%'], ['california 23', 'del m clawson', 'republican', '1963', 're - elected', 'del m clawson (r) 64.9% jim sperrazzo (d) 35.1%'], ['california 27', 'edwin reinecke', 'republican', '1964', 're - elected', 'edwin reinecke (r) 72.2% john t butchko (d) 27.8%'], ['california 29', 'george brown , jr', 'democratic', '1962', 're - elected', 'george brown , jr (d) 52.3% bill orozco (r) 47.7%']]
there were 3 Democratic Incumbent
there were 3 [ENT] [ENT]