So had the UK had the travel ban there is a good chance this would have been prevented. Does anyone think that the British people would like a do over?

Why would anyone think that extra caution would be a bad thing. The dems are playing a very high stakes poker game with their refusal to attempt to protect the US citizens.

If there is an attack that could have been prevented from the travel ban the dems will not be able to recover from it. No the same risk as if there is not an attack.