It’s difficult for non-lawyer/law student types to appreciate who Erwin Chemerinsky is. But he basically wrote the text book on constitutional law used by many if not most law students. He is a giant in the field of constitutional law and would have been a huge get for any brand new law school trying to establish its credentials.
And apparently UC-Irvine, which is starting its own law school, thought so too. Until they realized that some conservatives were going to complain. (See also here).
And why were they going to complain? Because he had radical views about the constitution? No. His views are pretty much the standard.
But because he’s had the temerity to point out that Bush’s views about the constitution are radical. For examples of this radical hippie beatnick’s writings and public comments see here and here about wiretapping and here about habeus corpus.