Charles Schwab's Kevin Gordon notes that the last time crude oil touched $105, a sharp downturn began in the commodity's price action. He sees a different story for crude today. That said, he doesn't see a big hit coming to the U.S. economy unless tensions between the U.S. and Iran persist long-term. As for the Fed's interest rate decision, Kevin explains how "relatively strong" nominal GDP sets a floor for rates even as the 10-year Treasury yield taps 5%.