1. Both unemployment and inflation rose dramatically. He was responsible for the term, "stagflation" (which you probably think is elk flatulence).
2. He got suckered by Brezhnev big time -- many call him one of the most naive POTUSs ever, though Barry is trying to trump that.
3. In September 1977, he signed over U.S. control of the Panama Canal to the Panamanian government, beginning in 1999 -- now thought to be one of the more bone headed decisions in recent memory.
4. Nicaraguan Daniel Ortega, leader of the Sandinista rebels who had just overthrown the dictatorship of Anastasio Somosa, asked Carter for some money, and he agreed on $118 million. He then took it and turned into a leftist dictator. Nice going Jimmy.
5. Utterly weakened the national defense -- and was generally know to be a pussy. This is why the Iranian hostage crisis lasted for over a year -- an international embarrassment of the first order. But Ted Koppel launched a nice career on Jimmy. Then he tried to rescue them with his limp-wristed and poorly maintained military, and it failed. Two helicopters failed and a third crashed into a plane on takeoff. The world laughed. And Jimmy bought another Cardigan sweater to wear in the Oval office.
I could go on, but I think that $150 is all you can afford. I take PayPal.