It's not the Tea Party who are in revolt.
This is a move by a Rino California congressman who wants to force an amnesty vote after the May 15th primaries...
As I understand it Ryan is taking the "moderate" position of working on an amnesty vote that can be sugar-coated so as not to inflame conservative voters, and to force the President's hand.
Here is one Summary
These scumbags will do anything to fill our streets with human debris.
Ryan not inflame anyone? He couldn’t even solve a dispute about the House Chaplain without alienating everyone.