<Table> <Tr> <Th_colspan="2"> District </Th> <Th_colspan="3"> Incumbent </Th> <Th> Results </Th> <Th> Candidates </Th> </Tr> <Tr> <Th> Location </Th> <Th> 2017 PVI </Th> <Th> Representative </Th> <Th> Party </Th> <Th> First elected </Th> </Tr> <Tr> <Th> New Hampshire 1 </Th> <Td> R + 2 </Td> <Td> Carol Shea - Porter </Td> <Td> Democratic </Td> <Td> 2016 </Td> <Td> Incumbent retiring . </Td> <Td> Eddie Edwards (Republican) Mark MacKenzie (Democratic) Deaglan McEachern (Democratic) Mindi Messmer (Democratic) Terence O'Rourke (Democratic) Chris Pappas (Democratic) Andy Sanborn (Republican) Levi Sanders (Democratic) Lincoln Soldati (Democratic) Maura Sullivan (Democratic) </Td> </Tr> <Tr> <Th> New Hampshire 2 </Th> <Td> D + 2 </Td> <Td> Ann McLane Kuster </Td> <Td> Democratic </Td> <Td> 2012 </Td> <Td> Incumbent running . </Td> <Td> Joe Aldrich (Libertarian) Lynne Blankenbeker (Republican) Stewart Levenson (Republican) Ann McLane Kuster (Democratic) Steve Negron (Republican) Justin O'Donnell (Libertarian) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> District </Th> <Th_colspan="3"> Incumbent </Th> <Th> Results </Th> <Th> Candidates </Th> </Tr> <Tr> <Th> Location </Th> <Th> 2017 PVI </Th> <Th> Representative </Th> <Th> Party </Th> <Th> First elected </Th> </Tr> <Tr> <Th> New Hampshire 1 </Th> <Td> R + 2 </Td> <Td> Carol Shea - Porter </Td> <Td> Democratic </Td> <Td> 2016 </Td> <Td> Incumbent retiring . </Td> <Td> Eddie Edwards (Republican) Mark MacKenzie (Democratic) Deaglan McEachern (Democratic) Mindi Messmer (Democratic) Terence O'Rourke (Democratic) Chris Pappas (Democratic) Andy Sanborn (Republican) Levi Sanders (Democratic) Lincoln Soldati (Democratic) Maura Sullivan (Democratic) </Td> </Tr>

How many republicans in us house of representatives