I just could not bring myself to watch and write a blog on the first half of the debate as this took so long and it was already late at night.
In general, this was a really bad debate because, as is usually the case, instead of answering the specific question they were asked, almost without exception, the candidates talked about something that either had occurred when they were in office or for legislation which they had supported at some time long ago. They habitually criticized the President for, if relevant, the issue about which they were questioned, and if not relevant, for anything and everything else, whether relevant or not to the issue before them. It never mattered if the President was deserving of criticism, and he even was criticized for the inaction of Congress.