The recently departed health secretary piled on the pressure. at some point we have to conclude that enough is enough. i believe that point is now. i have concluded that the problem starts at the top and i believe that that's not going to change. yet at that stage there was no budging borisjohnson. does the prime minister think there are any circumstances in which he should resign? frankly mr speaker, thejob of a prime minister in difficult circumstances, when you've been handed a colossal mandate, is to keep going — and that's what i'm going to do. archive: boris johnson leads the conservat...