Conservatives do not have to play by the leftist rules. The only box existing here is the box that that lines the hole the leftists dig for themselves.
Conservatives should simply make the case that they want complete tax cuts but will take what they can get now until they regain power. As well, they should make the case that although they have to settle for less in the right direction they will not trade a little step forward for two steps backward e.g. any massive spending tied to the middle class tax cut...
In essence, turn the tables -so that the 'middle class' tax cut extension if defeated is only defeated as a result of additional leftist spending measures included with the measure that the left would not remove...
How do conservatives make this case? The only place they will be able to get the message out is Fox News, where most of the viewers ALREADY KNOW THIS. The rest of the media will censor the conservative message.
Brilliant - exactly the way the Republicans should play it.