Former President Donald Trump has claimed London “opened its doors to Jihad” as he promised not to let the same happen in the United States. Trump, 77, who is hoping to become just the second Commander-in-Chief to serve two non-consecutive terms in the Oval Office, also warned the British capital is becoming “unrecognisable”. Speaking at a campaign rally in Wisconsin on Wednesday afternoon, the 45th President took aim at protesters who have staged two weeks of demonstrations on campuses across the US. He said: “We’ve seen what happened when Europe opened their doors to jihad. “Look at Paris, l…