Will the GOP Set Up Ted Cruz?

With his victories in Wisconsin and Colorado, Ted Cruz is now well-positioned to prevent Donald Trump from getting a majority of delegates for the Republican Convention.  The Republican Establishment can't stand Cruz, but they can't stand Trump even more.  The Establishment could give Cruz enough support to block Trump for two rounds of voting at the convention.  After two rounds of inconclusive voting, nearly all the delegates would be free to vote for whatever candidate they choose.  The Establishment could then propose a compromise candidate (think Paul Ryan; sorry, John Kasich but you simply aren't a heavy enough hitter), and lean on delegates to support the candidate anointed by the Establishment.  In order to break the deadlock and get on with the general election, a majority of delegates might be willing to abandon Trump and Cruz, and go with the inside favorite.  Cruz would be left in a ditch by the road, but then again the Republican Establishment can't stand him.