Same with guns. Guns haven't been a winning issue for Democrats (historically) so Biden avoided it.
I was asking why Trump didn’t talk about guns, not why Biden didn’t talk about guns.
Talking about guns only works for Republicans when Democrats talk about guns
Democrat: Hell yeah we want to take your guns
Republican: We support 2nd amendment
Winner: Republican
Republican: Democrats want to take your guns
Democrats: No we don't. Thats just NRA talking points.
Winner: Democrats
See? Neither party benefits by bringing up the issue. Hence it not being an issue in 2020.