I remember the Carters years 1977 to 1981 years, and nobody blames the Fed Reserve that raised the prime rate to 21% by 1981 from 5%. The Fed rates started up during Nixon 1969 to 1974. Then Gerald Ford got in from 1974 to 1977.
Reagon 1981 to 1989 get blessed by the Fed who started lowering rates after 1981-2. Unfortunately, even Reagon had no control as outsourcing accelerated during the awful 80s.
I also read in the Spotlight, that Reagon was doing great early on, so the big boys took him aside and offered to finance his campaign, but he had to take papa Bush as a running mate. So in reality, presidents have some influence, but they are not running things. Until an outsider like America first Trump got involved.
Its all the bankers that will make you or break you.