He didn't.
Limbaugh on Donald Trump: "Donald Trump is, I think, doing a great service. He is showing that you do not have to fear attacks from the media -- Republicans do not have to fear from attacks from the media. He's showing you do not have to fear being politically correct or violating political correctness."
Limbaugh on Ted Cruz: "Brilliant, and conservative through and through. Trustworthy, strong, confident, leader, and somebody in whom you can totally depend."
Comparing the two comments, i’d say he is in Cruz’s corner. Read between the lines.
BS on his analysis of Cruz. Cruz has done some flip flops this campaign - especially on H-1B visas. It isn’t popular, so now he is joining Jeff Sessions on this issue. Trustworthy? I think not.