<Table> <Tr> <Th_colspan="2"> Prime Minister of the Republic of Trinidad and Tobago </Th> </Tr> <Tr> <Td_colspan="2"> Official flag </Td> </Tr> <Tr> <Td_colspan="2"> Incumbent Keith Rowley since 9 September 2015 </Td> </Tr> <Tr> <Th> Term length </Th> <Td> Five years, two terms </Td> </Tr> <Tr> <Th> Inaugural holder </Th> <Td> Eric Williams </Td> </Tr> <Tr> <Th> Formation </Th> <Td> Trinidad and Tobago Constitution September 24, 1976 </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Prime Minister of the Republic of Trinidad and Tobago </Th> </Tr>

Who is the prime minister of trinidad and tobago