Paul Ryan and Senator Patty Murray unveiled their budget compromise. Already groups like FreedomWorks, Heritage Action, and the Cato Institute have started attacking the deal. If they can paint this as either an increase in spending or taxes then Ryan will be linked with two things that the GOP base, in particular primary voters and caucus goers, hate. That is not something Ryan would want to deal with if he runs for President in 2016.
If anything Ryan’s willingness to work with a liberal Democrat like Murray may signal that he is not running for President in 2016 and is instead putting his efforts into building his power in the House.