rank representative party district seniority date notes
rank
representative
party
district
seniority date
notes
number
number parsed year month day
number text text text date text
1 john dingell d mi-15 december 13, 1955 dean of the house
does each congressman have a party listed ?
VBD-AUX DT NN VBD-AUX DT NN VBN .
Yes
select count ( * ) = 0 from w where c3 is null