Voters who are strong supporters of Obama must understand that we can ensure that Obama will exceed expectations as President if he has 60 votes in the Senate he can depend on. The Obama campaign needs to make Obama voters understand that they can chose whether he succeeds as a compromiser, or on the strength of his ideas.
On whatever timetable the Obama campaign chooses, Obama should make it clear by frequent repetition prior to Election Day that Obama voters in Maine, for example, should without exception vote for Obama and for Tom Allen, and Obama voters in Minnesota for Franken, and Nebraskans for Obama for Kleeb.
The Obama campaign should make voters understand that votes for Democrats running for the U.S. Senate in their states will empower Obama to implement his ideas and see how they work, as FDR was able to do when the 1932 election gave him the votes in Congress to write a new course for this country after another terrible period of Republican misrule.
A throwaway line at each Allen or Franken rally Obama appears at is not enough effort on this. It has to be a central argument. It may be that some of the noise about Obama not being further ahead in the polls is born of an implicit recognition that when Obama is far enough ahead for long enough he can educate his voters on the need to make this a movement which sweeps more than just Obama into office in Washington. Channeling Chris Rock, "People don’t understand this shit. You have to explain it to them!" But enough people will end up being with Obama, and will do this, and it will make all the difference. I would not suggest the Obama campaign take this on if it didn't seem achievable, but amazingly, it just might be achievable.