By Jan Wolfe and Jonathan Stempel WASHINGTON (Reuters) -Donald Trump on Thursday sued his rival in the 2016 U.S. presidential election, Hillary Clinton, and several other Democrats, alleging that they tried to rig that election by tying his campaign to Russia. The lawsuit covers a long list of grievances the Republican former president repeatedly aired during his four years in the White House after beating Clinton, and comes as he continues to falsely claim that his 2020 election defeat by Democratic President Joe Biden was the result of widespread fraud. “Acting in concert, the Defendants mal…