The damage Nixon did to the American economy and the world was off the charts. He took the world off the Bretton Woods gold standard, (with OPEC warning him not to do that.) Because all oil is traded in American dollars, that caused the very first oil shocks and spikes in gasoline prices. And it ushered in an age of hyperinflation that vastly eroded the 70s economy.

Ford had no real understanding of inflation. He thought it was something political, rather than monetary. He did no good, but he wasn't in office long enough to do much harm. Carter further hurt the domestic energy group with that socialist "windfall profits tax." Carter also allowed IslamoFascism to take root in Iraq, when those ragheads committed an act of WAR by taking our embassy personnel hostage. Because Carter was such a weak president, the USSR felt empowered to invade and take over Afghanistan.

One of the reasons Reagan is seen as the greatest president of the 20th Century is how he fixed the American economy (mostly by reversing most of Carter's policies.) Also, he defeated the Soviet Union without firing a shot, and saved the world from nuclear annihilation.