NEW YORK — In recently released testimony before the Senate Judiciary Committee, a key participant at the June 2016 meeting at Trump Tower with President Trump’s son Donald Trump Jr. said that he “knows” Hillary Clinton and has a personal relationship with her that dates back to the late-1990s. Besides describing a direct connection to Clinton, Russian-born Washington lobbyist Rinat Akhmetshin also testified that he “knew some people who worked on” Clinton’s 2016 presidential campaign. Akhmetshin was one of the participants at the June 9, 2016 Trump Tower meeting that has been the subject of much news media coverage related...