President Trump's favored Diet Cokes will be climbing in price as a result of recently imposed tariffs. Coca-Cola says it's raising prices for several reasons, including new tariffs on aluminum imports. "We had to take with our bottling partners an increase [in prices] on our sparkling beverage industry in the middle of the year, which is relatively uncommon," CEO James Quincey tells CNBC. "That's the freight, that's the metals, the steel, the aluminum going up, the labor going up." It's unclear what kind of price hike is expected for consumers as a rep tells BuzzFeed retailers "have discretion in what consumers are charged on the shelf." (More Coca-Cola stories.)