Unlike Reagan, Trump didn't inherit an economy already in recession. Unemployment started to spike in 1980 and the economy was a significant factor in the election.
However according to Fox and the right on general he did. So it doesn’t matter what you and I think as his base believes they’re living in the Obama Recession
It doesn’t seem likely that this would happen before the midterms. Also, Trump is having a direct effect on the economy through his words (tweets) and actions (tariffs), Reagan was more of a bystander.