Democrats eye pivotal New York races as they seek to win back House

Republicans seen as vulnerable in four New York districts that could decide majority of the House

Democrats have their sights on New York next week, as they seek to win back the House of Representatives following a surprise Republican surge in the Empire state two years ago.

Just four seats are needed for Democrats to win a majority in the House, which could prove a crucial stay on Donald Trump's power if he wins the presidency.