The eruption of Senator John McCain at fellow Republican Sen. John Cornyn (TX) is an incident that reverberates on several levels. It renews lingering doubts about whether Senator McCain possesses the proper temperament to be president. It also raises serious questions about the substance of the "grand bargain" immigration bill that Senators Kennedy, Specter, McCain and others are attempting to rush through the Senate. (The written bill language was finally distributed to Senate offices early Saturday morning, 326 pages, still marked as a draft.) -snip- minor problem arose. Bush administration negotiators and a bipartisan Senate group had been meeting several...