"""Democratic Sen. Mark Warner texted with Russian oligarch lobbyist in effort to contact dossier author Christopher Steele""" EXCLUSIVE – Sen. Mark Warner, the top Democrat on the Senate Intelligence Committee who has been leading a congressional investigation into President Trump's alleged ties to Russia, had extensive contact last year with a lobbyist for a Russian oligarch who was offering Warner access to former British spy and dossier author Christopher Steele, according to text messages obtained exclusively by Fox News.