The claim is indisputably, objectively false. And rather than just say, "oops! Shouldn't have trusted partisan sources," he misdirects, as if they only two possibilities are $80B and $0. Anyone who doesn't accept the absurd figure Trump and then other Republicans have been peddling must believe that the true number is nothing. No one in the world is fooled by such transparent dishonesty, but I guess the hope is that annoys people who aren't in the tribe, and trying to make people who aren't Republicans feel anything negative is what these guys live for. I really think it's a small step to supporting mass murder (not to carrying it out, but it's easy to see how enough people can be OK with it enough for someone to do it).