Why Trump's Ratings Are Up

My guess of the reason for Trump's approval ratings to be rising is three-fold:

• he's no longer doing his rallies.  I'd guess independents and Democrats don't like his behavior during the rallies, so that helps.
• he's talking from the White House in the press briefing room.  While he's still doing Trumpisms, there's a veneer of presidential behavior.
• Republicans are feeling better about Trump, and Democrats are worried about the virus, which impacts willingness to respond to pollsters and how they respond.