A Florida man who worked closely with Rudy Giuliani on former President Donald Trump’s drive to get Ukraine to open an investigation that would be politically damaging to President Joe Biden pleaded guilty Friday to wire fraud in connection with a business scheme.Lev Parnas, 50, admitted in a federal court hearing that he deceived investors in the ironically-named business venture, “Fraud Guarantee,” which was ostensibly aimed at helping vet business opportunities for potential fraud.