The Nightcap: More retaliations in Trump’s trade wars

Canada announces a 25 percent tariff on billions of dollars’ worth of American products. Plus, Elon Musk has his sights set on social security while Chuck Schumer says Democrats will reject a GOP funding bill ahead of the Friday shutdown deadline. Catherine Rampell, Evan McMorris-Santoro, and Kara Swisher join the 11th Hour for our Nightcap roundtable.