Had Ted Cruz come out unequivocally denouncing Friday's disruptive Chicago protests, and defended Donald Trump's right to expression (however objectionable some find it), and to hold an unmolested campaign rally, under the First Amendment, he would have clearly differentiated from Marco Rubio and John Kasich.
It might have cleared a path to the nomination, and opened a door for Trump supporters to later support Cruz.
Instead, Cruz chose to lock arms with weak-kneed status quo.
Cruz apparently isn't the constitutionalist he brands himself as. He's become indistinguishable from other establishment hacks.