Actually the last 2 polls to come out, done completely after the last debate, show a virtual 3 way tie between Trump, Cruz and Rubio. The Emerson College poll had Trump 27, Cruz 26 and Rubio 22; The Opinion Savvy poll has Trump 20.1, Cruz 17.4 and Rubio 18.6.
Two minor college polls that even Nate Silver dont take seriously.
And they are obviously the only two that Cruz people today think are accurate?