Yes, Ted Cruz makes Joseph McCarthy look like William F. Buckley, Jr. But he hits a gigantic nerve with feel-don't-think conservatives across the USA.
Witness these comments on Cruz' Facebook page (commenters' names redacted):
Good that they have a Senator who understands the Constitution and the gravity of the current state of affairs.
Please don't crumble! You are all we have!!
Ted Cruz for president!
WE DONT LIKE OBAMA, REMOVE HIM FROM OUR WHITEHOUSE! !!!
Illegal Immigration, and Obamacare, this is not the country of my youth. STAND YOUR GROUND or we are ruined