Uh, no. He had a Democratic congress the first half of his term. Part of why he lost them is Dems are so tepid with exercising the power the voters give them.
Nothing the Dems do, or even try to do, gin the base up into excitement. The base never feels inspired that the Dems are striving for the goals they claim to represent and want.
They didn’t actually have a filibuster proof majority for much of that time. Franken’s win in Minnesota was contested, and he wasn’t sworn in until 9 months after the election.