The Democrats have secured a majority in the House of Representatives in a blow to Donald Trump, but the Republicans have held the Senate with voter turnout surging.

The Democrats have surpassed the 218 seats required for a House majority by gaining the 23 they required and are on course to take more, allowing them to frustrate legislation that the Republicans try to pass through Congress.

However, the Republicans have held onto the Senate comfortably, taking three seats from the Democrats so far. President Trump’s party won key bouts in Texas, where Ted Cruz was re-elected against strong opposition from Beto O’Rourke, and Indiana, where Democrat incumbent Joe Donnelly was ousted by Republican…