Kay Bailey Hutchison, the U.S. ambassador to NATO, told Dana Perino on Fox News Sunday that she thinks "Russia is trying to flip Turkey," adding, "They're trying to flip many of our allies. They want to destabilize the strongest defense alliance in the history of the world."

The backdrop: U.S. allies are concerned that President Trump — who has been critical of NATO — will slam NATO members at the group's July 11-12 summit in Brussels, then lavish praise on Russian President Vladimir Putin during their meeting in Helsinki just days later.