Yes, she is a very smart person who is very capable. I think that it may be unclear to those who are not as smart as her. Sometimes speeches may be hard to follow is a person is speaking too fast, but she does everything the way it should be done.
E. J. Dionne's libertarianism is totally made clear in all speeches. There is no doubt about his libertarianism if you have ever heard of one of his speeches. If you have a hard time trying to find it in his speeches, then there is a good chance that you don't know what it is.
Yes, E. J. Dionne's libertarianism is made clear in all speeches, because he begins with the presumption that all humans approve of some kind of limitation on government. That is a libertarian presumption of course, because true liberals would argue with him. He also discussed cutting back on social spending such as Medicare. He is not hard to follow.
Yes, I think that her ideas are made clear in all of the speeches that she gives. I think that she is a very smart person, and that she really does know what she is talking about, so we need to listen and soak it all up so that we learn.
He's making a speech, not reciting a dry list of facts and qualifications for testimony in court. It's up to the listener of the speech to decide what, if any, agenda the speaker may have. Also, to decide bias or anything else on their own. Being able to do so is a mark of intelligence. Try it sometime.