When has Glenn ever been a Republican? He has always said he was a Libertarian. Glenn even played the part of giving the Libertarian response to the State of the Union speech. Going back two elections, he has on occasion used his soap box to oppose all the Republican front runners. Until the field is narrowed then he jumps onboard. He has done the same thing during the last two elections, and as a listener, I remember being angered a bit with his speech saying he could not vote for the Republican candidate in both 2008, and 2012.
This headline from Oct 2012... "Glenn Beck Might Not Vote For Mitt Romney"
Jun 25, 2008 - Glenn Beck says he won't vote for Obama but may not vote for McCain, either.
Not worried about Beck, he understands the importance of not handing the election over to Hillary. He will once again jump onboard later in the campaign. I'm more worried about the listeners that are swayed by his talk of not going to the polls, or voting third party. These elections are now too close to drive conservative voters away, from the only person than can prevent 8-years of Hillary.