 Trump himself is 78, prone to verbal gaffes and rambling remarks, so that's one possible reason he hasn't really attacked Biden on those points. But a bigger reason, a key campaign narrative from Trump, is that Biden is the mastermind of Democratic policies that he says make America not great. Trump spoke at a Virginia rally Friday. But remember, the biggest problem for our country is not Joe Biden's personal decline. It's that Joe Biden's policies are causing America's decline at a level that we've never seen before.