(Bloomberg) -- Bloomberg View Weekend Edition hosted by June Grasso.\u0010\u0010Guests:\u0010Joe Nocera, Bloomberg View columnist: " The Gun Business Needs This Gun-Control Measure."\u0010Hal Brands, Henry A. Kissinger Distinguished Professor at Johns Hopkins University’s School of Advanced International Studies (SAIS), and a columnist for Bloomberg View: "U.S. Allies Can't Fill the Global Leadership Void."\u0010Toby Harshaw, Bloomberg View editor: "What Is Putin Up To? Here's an Educated Guess."\u0010Jonathan Bernstein, Bloomberg View columnist: "Already, Too Many Democrats Have 2020 Dreams."\u0010Conor Sen, Portfolio Manager for New River Investments and a columnist for Bloomberg View: "A Strong U.S. Economy Can Be Tough on Immigrants."