You've got to be careful with theories like this, bud. It's a simplistic view, that makes the world insanely complicated.
You basically start with a conclusion, and then no matter what happens you attribute it to a conspiracy against Paul.
Couldn't it just be that CNN showed Paul's speech because he's doing better than expected in the state that is voting today, and happened to be giving a speech? That is the simplest and most rational explanation, is it not? And hell, to even add a bit to it, they know that when they show Paul they'll get a lot more people to tune in and to discuss their broadcast on Twitter.