MSNBC’s Claire McCaskill predicted that Donald Trump would turn off voters he needed to win over by wandering off-topic in Tuesday night’s debate. The former president and current Republican nominee seems to be aware of criticism of his meandering campaign rally speeches, which he has insisted is an intentional tactic he calls the “weave” — but the former Missouri Democratic senator told “Morning Joe” that act won’t play well in his debate against Kamala Harris. “Listen, it’s going to be quite a contrast,” McCaskill said. “Just the visual is going to be acute. I have to tell you, it’s a little…