Friday briefing: Conservatives in meltdown over ice stunt

Boris Johnson replaced by ice sculpture at climate debate " US donors influencing UK politics revealed " families voice fury at Hillsborough verdict

Good morning. It's been a dramatic 12 hours in politics-land after ice sculpture-gate caused some embarrassment for the Tories and led to them threatening Channel 4's right to broadcast. We'll also bring you the best of the rest of the news, and you can follow our rolling political coverage here.