Trump will in fact make him more popular.
"The great danger by attacking this one man is that we can fix on him a halo of victimhood," he said. We give him the role of martyrdom which can seem to be an advantage among those who support him…We should not build him up by our attacks," he argued
Key quotes from the debate
Labour MP Jack Dromey: "I don't think Donald Trump should be allowed within 1,000 miles of our shores....Donald Trump is free to be a fool but he is not free to be a dangerous fool in Britain."
Labour MP Naz Shah: "I would give Donald Trump an open invitation to visit my constituency... I would invite him for a curry. I would welcome him, have a conversation with him and challenge him on his views."
Conservative MP Sir Edward Leigh: "Like it or not, he is quite a contender to be the head of state of the most powerful country on the planet, a country which is a vital ally of ours. We have welcomed to the country Saudi and Chinese leaders, not to mention Mr Ceausescu, whose crimes are far worse than anything Mr Trump can dream