The man is virtually the nominee at this point, and is literally unopposed. There is no onus on him to do anything right now, except prove that he could do a better job than Hillary... which isn’t a very big hurdle to jump over.
I could guarantee you that if Cruz had won as Trump now has, the vast majority of Trump supporters would vote for Cruz, no complaints and no questions. We all understand that Hillary is just Obama 2.0, which must be worse than V 1.0 because it would build on the “accomplishments” of Obama. No 3rd party has won, ever, so the only hope to stop her and the catastrophe that she will bring is Donald Trump. When will you Cruz people get over your guy losing, recognize this fact and get on board? Your country literally depends on you doing that.
I think most Cruz supporters will be voting for the nominee, Donald Trump. But, no complaints and no questions? What country operates like that? This one didn’t used to. Nor did this web site. Scary times.