some conspiracy theorists believe the economy is improved from 2008. Are they crazy?
Others know that the economy always improves after a recession, and that government does not control such things as economic cycles. The government can perhaps facilitate a better recovery by not overstepping its bounds, or can perhaps dampen such a recovery a bit via excessive regulations and taxes, etc. This recovery is quite tepid.
Dodd Frank did not need to be thousands of pages. 5-10 pages of common sense regulations keeping banks who hold the money of others from taking too much risk and borrowing too much would have sufficed.
A recession and recovery due to real estate and financial bubbles would have happened from late '07 through early '09 to present regardless of politics and who was in the White House. Just like the late 70's and early 80's (although Carter was a very dangerous idiot who made it worse), just like the dot com boom and bust 15-20 years ago, just like the next one that will probably be inflationary in nature that is being created by zero rates for 7+ years, etc, etc.
Believe it or not, nowhere near everything that happens on a president's watch is to his or her fault OR credit.