“Cruz went willingly over to the side of GOP leadership and he deserves every bit of scorn heaped upon him.”
You do realize that the minute the GOPe puts their support behind Trump, Trump then becomes establishment. Best thing for Trump is to win the nomination after a long, dirty fight and then destroy Hillary while the GOPe tries to sabotage Trump.
Under that logic, Trump would become a Communist if endorsed by Communist Party USA. Trump would not become part of the GOPe, unless he wanted to become part of it.
The difference is like night and day. When it comes to backing Trump the establishment does not have a choice other than the breakup of the party and massive losses in congress. Trump is now the one doing the favor for the GOP. Cruz was losing and came to the GOP hat in hand to sell us down the river.