The Russian lawyer who met with Donald Trump Jr. during the 2016 campaign while promising damaging information on Hillary Clinton offered President Trump's eldest son opposition research created by Fusion GPS — the firm behind the unverified Trump/Russia dossier, according to Reuters. ... Glenn Simpson, one of the firm's founders, met with Veselnitskaya before and after her 2016 meeting at Trump Tower with Trump Jr., Paul Manafort, and Jared Kushner, according to the report. But Simpson was unaware that the meeting had taken place, according to a source familiar with his testimony to the special counsel probe.