Yeah he's losing older voters because they think another term could actually be life threatening to them because of COVID.
How can he stand on a single issue of building a wall and Mexico paying for it, not deliver it at all and then no one mentions it at this election? It just encourages politicians to say any old shit to get elected.
Also MAGA doesn't work as a slogan after you have been in charge for 4 years...this whole 'things are terrible vote for me and I'll fix it' when you are the incumbent?