The Hillary Clinton campaign and the Democratic National Committee helped fund research that resulted in a now-famous dossier containing allegations about Donald Trump’s connections to Russia and possible coordination between his campaign and the Kremlin, people familiar with the matter said. Marc E. Elias, a lawyer representing the Clinton campaign and the DNC, retained Fusion GPS, a Washington firm, to conduct the research. Fusion GPS hired dossier author Christopher Steele, a former British intelligence officer with ties to the FBI and the U.S. intelligence community. Elias and his law firm, Perkins Coie, retained the firm in April 2016 on behalf...