<Tr> <Th> Chair </Th> <Td> Chuck Grassley (R) Since January 3, 2015 </Td> </Tr> <Tr> <Th> Ranking member </Th> <Td> Dianne Feinstein (D) Since January 3, 2017 </Td> </Tr> <Tr> <Th_colspan="2"> Structure </Th> </Tr> <Tr> <Th> Seats </Th> <Td> 21 members </Td> </Tr>

Who decides who is on the senate judiciary committee