John Heilprin writes at Associated Press

Tensions run high on immigration, and the bargain reached last week sparked intramural hostility between Sen. John McCain, R-Ariz. and Sen. John Cornyn , R-Texas, who had a bitter exchange during the last closed-door meeting before a deal was announced.Cornyn, who opposes the agreement, said that McCain, a supporter, has apologized to him for launching a profanity-laced tirade at the Texan accusing him of holding up the deal.

If they think tensions are high now, just imagine the situation in which a bad deal gets passed that even more significantly reduces wages and working conditions for Americans.