Some news that came out over the weekend is hitting electric vehicle (EV) stocks like Rivian Automotive (RIVN -2.39%) hard on Tuesday -- a down day for the broader market. Rivian shares plunged by as much as 5.2% to open the holiday-shortened trading week. As of 2 p.m. ET, the stock was still lower by 2.3%, while the S&P 500 was off by about 0.7%.Rivian reports on WednesdayDuring a week when it will report its fourth-quarter and full-year financial results, Rivian is enduring some bad news from the governme ...