Ruffin owns various commercial real estate holdings in Kansas and in the Tulsa, Oklahoma area. Manufacturing Ruffin owns and operates Harper Trucks, the world's largest manufacturer of hand trucks and Angelus Manufacturing, a maker of steel hand trucks. In December 2013, Ruffin purchased the assets of Torrance, California-based WelCom Products, makers of the Magna Cart line of folding hand trucks sold across the US and over 25 countries worldwide. Other holdings Ruffin's diversified portfolio of stocks includes Wynn Resorts, Las Vegas Sands, and MGM Resorts. Casino Miami Ruffin purchased Casino Miami in Miami, Florida which was sold to him on December 3, 2018. It is located at 3500 NW 37th Avenue, Miami, Florida with extensive plans to expand. Relationship with Donald Trump Ruffin is a longtime friend and business partner of Former President Donald Trump, who was the best man at Ruffin's third wedding in 2008. "Few know Trump as well, or in as many capacities, as Ruffin," reported the Associated Press in March 2017. They met at Trump Tower "in the early 2000s" when Ruffin was considering adding a Trump hotel to his Treasure Island casino. That idea did not pan out, but some time later, in Las Vegas, "Ruffin took Trump to a Nordstrom parking lot to show him a parcel of undeveloped land." Ruffin said, "This is where you ought to be," and Trump "instantly made a decision" to build there. Their wives are also good friends. Ruffin has described a Trump handshake as "better than any contract." In June 2018, Trump gave the Ruffins a tour of Air Force One during a stop in Las Vegas. 2013 Trump visit to Moscow Ruffin may have become an important witness in the Trump-Russia Investigation and to disputed allegations in the related Steele dossier. Trump had flown on Ruffin's private jet to Moscow in 2013 for the Trump-owned Miss Universe Pagaent. At the time Ruffin himself was married to a former Miss Universe, Ukrainian supermodel, Oleksandra Nikolayenko. Trump has since been accused of having engaged with prostitutes at a hotel room during that trip in urolagna-related sexual activities, and that those activities were filmed by Russian agents intended for the blackmailing of Donald Trump (kompromat). Former British intelligence officer, Christopher Steele provided reports of such activities, although they have not been substantiated in any major media outlets. Trump has repeatedly denied having stayed overnight in Moscow for the pageant