This CNBC analysis looks at the question of whether open primaries are better for Donald Trump than closed primaries are.

The article would be better if it acknowledged that there are three types of presidential primaries: open, semi-closed, and closed. Semi-closed primaries are primaries that allow independents to choose any party’s primary ballot, but won’t let members of one party choose another party’s primary ballot.

By contrast, open primaries let all voters have a free choice of any primary ballot. Reporters often don’t understand the three types of presidential primaries. The confusion is made worse by people who use the term “open primary” when they mean a blanket primary or a top-two primary. However, there are no presidential primaries that are top-two or blanket.