Second: The desire to prove Republicans can govern also makes them hostage to their opponents in the Democratic party and the media. It empowers Senator Harry Reid, whose dethroning was in large measure the point of the election. If Republicans proclaim that they have to govern now that they run Congress, they maximize the incentive for the Democrats to filibuster everything they can — and for President Obama to veto the remainder. Then the Democrats will explain that the Republicans are too extreme to get anything done.
Third: A prove-you-can-govern strategy will inevitably divide the party on the same tea-party-vs.-establishment lines that Republicans have just succeeded in overcoming. The media will in particular take any refusal to pass a foolish immigration bill that immediately legalizes millions of illegal immigrants as a failure to “govern.”
Fourth: Even if Republicans passed this foolish test, it would do little for them. If voters come to believe that a Republican Congress and a Democratic president are doing a fine job of governing together, why wouldn’t they vote to continue the arrangement in 2016?