Sen. Bernie Sanders (I-Vt.) lashed out Monday at critics of fellow 2020 presidential hopeful Rep. Tulsi Gabbard (D-Hawaii) including Hillary Clinton, after Clinton and others suggested that Gabbard is a "foreign asset" for Russia amid reports that Moscow's online bots and trolls are supporting her campaign. In a tweet, the Vermont senator and runner-up for the 2016 Democratic nomination called such accusations "outrageous," pointing Gabbard's background as a military veteran. Bernie Sanders ✔ @BernieSanders Tulsi Gabbard has put her life on the line to defend this country. People can disagree on issues, but it is outrageous for anyone to suggest...