I've always found things like this interesting.

Arnold's father was a Nazi. HUGE coverage.
Cruz HIMSELF was in Mecha (pretty close to a nazi organization) No 
coverage.
Arnold says a line in a movie that could be taken as anti-feminist. HUGE 
coverage.
Cruz HIMSELF uses the N word at an NAACP meeting. No coverage.
Arnold's team issues a statement that property taxes might need looking at. 
HUGE coverage.
Cruz HIMSELF says that California should be part of Mexico. No coverage.

Arnold is a pro American as they come, and he is regularly attacked by the 
media. A case could easily be made that Cruz is a traitor, and he is 
considered a respected man. When did Americans so begin to hate their own 
country?