What makes you think I haven't? Just another Cruz supporter making baseless claims against a Trump supporter. His books are excellent - that doesn't mean he isn't right all the time, think Rubio, think Orrin Hatch. I believe there are many others.
Rubio talked a good game, but his history in the Florida house made me very suspicious of him from the beginning.
But I am also very suspicious of Trump, because he is not a demonstrably life long conservative, which Levin clearly is.
This latest attack "from the left" on Cruz is very reminiscent of Newt's unforced error in 2012, in fact I think you even posted something about it.
And I do agree with Levin, that substantive policy issues are fair game and should be hashed out, I would much rather hear Trump discussing how he would eliminate H1-B visas, then the number of friends Cruz has in the senate.