Because "Republican Leadership" is allied with Democrats and media against him.
I used to think Sarah Palin was the most feared conservative in this country, but I have not realized it is Cruz that has that honor. They FEAR him. Rightfully so, IMO.
Nearly every other hopeful warrior, candidate or outspoken politically minded person (save Palin) over the years has invariably backslid on my beliefs about them. This isn't so with Cruz. Never wavered.
Uniparty, period!
FMCDH(BITS)