"He's a liar," Creamer told Isikoff. "Of course he knew him. I flew in the [Trump] helicopter with [Trump's then wife] Ivana and the kids. My dad flew it up and down [to Atlantic City]. My 35th birthday party was at the Plaza and Donald was there. After the party, we went on his boat, his big yacht. I like Trump, but it pisses me off that he denies knowing my father. That hurts me."