Am I the only one who thinks this will only marginally move the polls? Maybe I'm just jaded by this inexplicable election, but those who are supporting Trump are largely going to stick with him. There will be some movement on the margins and a pre-Friday 6 point lead for Hillary might become 8. If the GOP totally disowns Trump, which looks like is occurring, it might become 10 due to lower enthusiasm/turnout. I just don't see that many minds being changed though.
Sure, a lot of Republican politicians are jumping ship but they already knew this ship was going to sink even before these comments. These comments just give them an excellent excuse to distance themselves from him, and run on a message of being a check on Hillary. This doesn't mean the GOP base feels any different today. Hell, just see how Heck and Ryan were greeted by GOP voters today. That core 40-42% of the population is sticking with him.
I think it might not impact his number too much, but might shift the undecideds to Hillary at a stronger rate.