>Likewise, the Left had the House, Senate, and President and could have passed anything they wanted for two years. Their opportunity was blown too. (Yes, resistance from the opposition could have been overcome.)
This is not quite true.
In the 107th Congress, the dems had a tie in the Senate until a Vermont Senator switched from republican to Independent. The republicans controlled both the presidency, Congress, and some would argue also the Supreme Court, during the 108th and 109th Congresses. And in the 110th, the dems held a one seat advantage in the Senate if you count Independent Sen. Bernard Sanders on their side. But the republicans made unprecedented use of the filibuster to obstruct the normal business negating any control.
And until 2008, you also had a large number of Blue Dog democrats in the House who were just as likely to vote with the republicans as they were with the democrats.
Plus you had a "Democrat" like Lieberman who was a keynote speaker at the republican national convention. He was hardly a reliable vote on the democrats' issues.
So no, they may have held a few slim majorities on paper, but they never controlled Congress.