Self-proclaimed “dirty trickster” Roger Stone was caught on an audio recording with his security guard floating assassinations his alleged congressional Democratic nemeses: Rep. Jerry Nadler (D-NY) and Eric Swalwell (D-CA), weeks before the 2020 presidential election, Mediate reports. “It’s time to do it,” Stone reportedly told Sal Greco, an NYPD cop moonlighting as Stone’s security guard, at Caffe Europa in Fort Lauderdale, Florida. “Let’s go find Swalwell. It’s time to do it. Then we’ll see how brave the rest of them are. It’s time to do it. It’s either Nadler or Swalwell has to die before t…