Who is the Leader of the Republican Party According to Rush?

Rush Limbaugh was on Greta Van Susteren Friday night. She asked him who was the leader of the Republican Party. He said that it's too early to tell, but talked about the top 3 candidates in the polls.

Rush said that the liberal media isn't afraid of Mike Huckabee or Mitt Romney, but are afraid of Sarah Palin. I think that the liberal media doesn't attack Huckabee because he is friendly to them. When he speaks he gives reasons why he disagrees with liberals. If he runs in 2012 as a frontrunner, I'm sure they will attack him though. Plus, the conservative media already attacks him so they don't have to now. Liberal media doesn't have to attack Romney because he agrees with them on issues at one time or another. I'm not sure why they attack Palin. I don't think it's because they are "afraid of her". I think she was an easy target in the beginning with a couple of bad quotes and was inexperienced for the national stage and liberals liked the attacks and mocking so they have kept it up. Plus, what was the liberal media going to do during the election, investigate anything about Obama and his past??