There is only one Democratic leaning congressional district represented by a Republican : New York 's 24th , according to Cook Partisan Voting Index .
As of January 2019 , the only Democratic-leaning congressional district that is represented by a Republican is New York 's 24th ; with a PVI of D+3 , the district is represented by John Katko , who is the only Republican to represent a Democratic-leaning House district .
Cook Partisan Voting Index