Cruz has been saying much of what Trump has been saying.
The difference is that Trump has a much bigger Megaphone.
Yep... Trump has a billion dollar megaphone. And the thing Trump has that most of the others don't have .... is the name recognition. We who follow politics and study the various candidates forget the MEGA impact that name recognition has. When I was 18 my father was a local elected politician for several years. I learned then that there is no substitute for name recognition. A large number of people walk into a voting poll and often just vote for the name they have heard before, or recognize.