 Now, Ohio Senator J.D. Vance joined Fox News Sunday, says a former president has made clear that Europe has to step it up. America cannot be the policeman of the world. We want NATO to be a strong alliance. We don't want NATO countries to be welfare clients of the United States. If Vladimir Putin is a significant threat to Europe, then the Germans have to step up. The French have to step up. They need to do more for their own security.