It's probably because Chuck Norris is a known right-wing christian fundamentalist. His general Islamophobia and his disregard for the First Amendment is part of the reason why all those “Chuck Norris” jokes dropped out of favor.

Chuck Norris makes an encore showing
because everyone knows he is the most
important endorsement on politics!

If Michael Jordan isn't there, it's not a dream team.

Introducing the new 700 Club lineup. The Faith Coalition. I suppose, at least people have heard of Chuck Norris. Maybe he ought to run.

I appreciate the token colored person.

Look out! JC Watts in the house! Gingrich is going to steal the Samuel L. Jacksons of the Republican primary voting pool.