In an interview with Morning Joe, Ben Carson said that Trump, Cruz and Sanders would not “be an expert on Russia,” but notably excluded Hillary Clinton from that list. 

Here’s what Carson said about Donald Trump:

I think he’s as knowledgeable as most of the other people. But one of the things that has to be understood is that when it comes to complex foreign policy, you’re going to have experts in those areas. I don’t care how much time he spends, for instance, reading about Russian history, he’s not going to be an expert on Russia, nor is Senator Cruz, nor is Senator Bernie Sanders. None of them are going to be. You have to be able to utilize the right kinds of people.

Watch it: