Trump's China threat slams stocks — plus, our best and worst of the 3-year bull market

Every weekday, the CNBC Investing Club with Jim Cramer releases the Homestretch — an actionable afternoon update, just in time for the last hour of trading on Wall Street. Markets: Stocks were selling off to close the week after President Donald Trump threatened a "massive" tariff increase on China amid a dispute over rare earth minerals. Over the summer, Trump cautioned that he would place steeper tariffs on China if it curbed exports of rare earth magnets. This announcement, however, still surprised the m ...