Jimmy Carter was terrible, the nation was a mess, and he made it worse
Bill Clinton he was OK, didn't necessarily agree with him.
Barak Obama I think he sucks, he spent way to much on "shovel ready" projects that didn't exist. He managed to set a precedent where Americans can be penalized for inactivity aka Obamacare - now I'm sure I'll hear all the bleeding heart crap about how many people have insurance now. 1) This is a massive benefit to the insurance industry, .gov is requiring you to buy their product. 2) What are the numbers 17 million more, that is 5% of the population, so 95% get screwed for the 5%.
I disagree on Carter. A lot of the improvements we saw in the early 80s were partially because of Carter. Carter also did his best to live up to ideals of the US regarding non-aggression and what not. Was it perfect, no, but he didn't put us in the middle of wars and refuse to get out of them 'ala vietnam.
I dislike Obama's record on civil liberties of course, and I'm not perfectly keen on the healthcare bill, but again, there were opportunities numerous years prior to have someone do something, yet none did. Obama's plan isn't perfect, but it has helped people. Maybe not enough people in your mind, and I can understand that, but it has helped people.
I mean, let's be honest, the fact that people can't be turned down because of "pre-existing conditions" alone is a good thing. I think we can all agree that to turn someone away because they caught something isn't really "right".
I mean, we can pick and choose any good or bad thing we want about any President, but when we start talking about how so and so is the worst president ever, and pick and choose what parts of anyone's presidency we look at, we're just being dishonest with ourselves.
We can say that Reagan created Al Qaeda by pumping arms into the Muhajideen in the 80s to fight against the Afghans, or how Bush removing Saddam caused the power vacuum leading to Isis due to the proxy war in Syria.
None of them were necessarily "bad", they all just made the best decisions they could and some turned out well, some turned out poorly.
That's pretty much life.