Reagan got lots done without controlling the Congress, it can be done if the will of the voters is made clear enough by the results. Problem has been since 1994 voters keep sending mix signals s every other election.
But hear me on this: the closer you get to 60, the harder it will be to get that last RINO, because they will know that everything hinges on their vote. So it will in the short-term make Olympia Snowe and Susan Collins and Grahamnesty the most important people in the Senate.