A sneak preview of what you'll hear from Cruz on Thursday night in the highly unlikely event that Trump doesn't show. You'll find all the points you'd expect in the clip below: Trump is snubbing Iowans by skipping the debate; Trump is too mercurial to be president; Trump is afraid to defend his record from Cruz; and the ever-popular "I'll debate you one-on-one anywhere" challenge that’s never worked in all of political history. Depending on how daring Cruz wants to be, you may hear a variation on this point on Thursday night too. Reaaaaally iffy to attack Trump for doing...