Joe Biden flipped the script on the GOP's constant attacks on his mental state, with the former vice president questioning President Trump's own mental acuity. In response to a question on what consequences the president should face if reports that he knew about a Russian government scheme to pay Taliban soldiers to kill American service members overseas were true, Biden said Trump "doesn't seem cognitively aware of what's going on." "This president talks about cognitive capability. He doesn't seem to be cognitively aware of what's going on," Biden said on Tuesday afternoon during a press briefing in Wilmington, Delaware. "The...