[['district', 'incumbent', '2008 status', 'democratic', 'republican', 'green'], ['1', 'john b larson', 're - election', 'john b larson', 'joe visconti', 'stephen e d fournier'], ['2', 'joe courtney', 're - election', 'joe courtney', 'sean sullivan', 'g scott deshefy'], ['3', 'rosa delauro', 're - election', 'rosa delauro', 'bo itshaky', 'ralph ferrucci'], ['4', 'christopher shays', 're - election', 'jim himes', 'christopher shays', 'richard duffee'], ['5', 'chris murphy', 're - election', 'chris murphy', 'david cappiello', 'harold burbank']]
in the Connecticut 2008 Election , only 1 Incumbent was not a democrat
in the [ENT] only 1 [ENT] was not a democrat