Jimmy Carter was one of the most conservative Democratic presidents we've had since Woodrow Wilson. Depending on your perspective, he was much more conservative than any Democrat since Wilson.
Time Magazine said of him:
A catalog of contradictions: Liberal, moderate, conservative, compassionate, ruthless, soft, tough, a charlatan, a true believer, a defender of the status quo, a populist Hamlet... A Democrat who thinks like a Republican... he also considers himself a fiscal conservative...
Other facts concerning him:
A former State Senator, he was elected Governor by running to the right of the other Democratic candidates. "I was never a liberal," he told state voters that year. "I am and have always been a conservative."
He campaigned against school busing.
A supporter of the Viet Nam war, as Governor he declared "American Fighting Man's Day" in support of Lt. William Calley after his court martial on charges of massacring civilians.
At the 1972 Democratic convention, he was a delegate for Henry "Scoop" Jackson's (said by some to be the father of the DLC) presidential campaign, and he worked with Al From of the DLC on economic issues as well.
One of his campaigns was endorsed by Pat Robertson, who aired a profile of him on the 700 Club.
He was a major supporter of NAFTA and pushed for MFN status for China.
I can say with some confidence, based on the the reasons some her bash Bill Clinton and to a lesser degree Barack Obama (but give them time!), DU would have HATED Jimmy Carter in 1976.