Attack Rubin and the Journal all you want. Cruz national security
will be an anchor for Cruz if it continues to be the top issue on the minds of Republican primary voters. Expect Christie to go after him hard on this in the debate next week. Expect Donald Trump to follow Christie's lead on this one. Expect Bush and Rubio to pile on and attempt to lump Cruz in with Paul as often as possible.
Note: This is not a personal endorsement of Christie or a discarding of Cruz as a Candidate. I just believe that these issues are what is going to stick in the minds of voters unless Cruz is extremely prepared for this. I expect he will be, but I still don't think Rubin is wrong on this one.