Hillary Clinton said that Rep. Tulsi Gabbard is being groomed by Moscow to run as a third-party spoiler candidate in 2020 to help President Trump win reelection. The former secretary of state pushed the theory on the Campaign HQ podcast hosted by David Plouffe, President Barack Obama’s campaign manager in 2008. Plouffe and Clinton discussed hurdles the Democratic nominee would face and compared the 2020 race to Clinton’s loss to Trump in 2016. Plouffe asked Clinton about the part third-party candidates, such as Jill Stein of the Green Party, played in 2016, allowing Trump to secure key states. "They are...