I was reading through the comment section of a few posts this morning (something I rarely can bring myself to do anymore) and I realized that I need to remind people of something that's very important for successful governance:
FDR was, of course, a consummate political leader. In one situation, a group came to him urging specific actions in support of a cause in which they deeply believed. He replied: "I agree with you, I want to do it, now make me do it."
He understood that a President does not rule by fiat and unilateral commands to a nation. He must build the political support that makes his decisions acceptable to our countrymen. He read the public opinion polls not to define who he was but to determine where the country was - and then to strategize how he could move the country to the objectives he thought had to be carried out.
If Obama wants to govern as liberally as the political circumstances allow, then we need to work to make sure that the political circumstances include a strong liberal base. Mindlessly cheerleading out of a misplaced sense of loyalty will not help him. As Roosevelt understood, politics are interlocking interests and constituencies that have to be brought to bear to achieve certain goals.
In the current political world, I believe that Obama and the Democrats need a strong left wing that is out there agitating in order that we can continue to build popular support and also give them a political excuse to do things that the political establishment finds too liberal. Being cheerleaders all the time, however enjoyable that is, is not going to help them. Leaving them out there with no left wing cripples them.