Limbaugh does not endorse anyone. If he did he would lose listeners. People take what he says if it makes them feel good.
I realize it wasn’t an endorsement, but he most certainly holds a very high opinion of Ted Cruz. Did you hear him?
Limbaugh does not endorse for multiple reasons which are all good. But in your heart you know he is right. Cruz is conservative through and through and trustworthy, WB is helpful. So there.