Actually we were in an economic depression until Obama left office, the economic gains were negligible compared to the damage the country suffered and continued to suffer. Things only really turned around once Trump came in and started nullifying all of Obama’s illegal actions that were choking the economy. (E.g., many of America’s corporations had fled abroad to escape Obama’s punitive corporate taxation—highest in the world next to Greece—which made American businesses non-competitive with foreign corporations.) Unfortunately, Obama had already run the debt up to $20 trillion at that point and it is going to keep on accelerating since despite rosy surface performance the U.S. is basically bankrupt.
I believe the corporate tax was still 35% prior to the Idiot entering office in 2009.