If we want progressive government, it is not enough that we have a progressive president (even so moderate a progressive as President Obama). It's not even required.
If we truly want progressive government, we need a progressive Congress. More specifically, we need a 2/3 majority in both houses - 292 or more in the House and 67 or more in the Senate.
Think what that would mean. If President Obama is re-elected, he has an overwhelming majority, and especially one that can resist a filibuster in the Senate. If President Obama is not re-elected (heaven forefend!), that is a majority that can not only resist a filibuster, but can override a presidential veto.
And note that I haven't associated this with a specific party. There are some troublesome regressive Democrats; and there are certainly out there some progressive Republicans (well, at least there used to be). The issue isn't party, but progressive goals.
So, if we want progressive government, we need a progressive Congress. And it's time we focused on that. The regressives learned this long ago; which explains why we have the Congress we have today.