On the July 8 edition of his nationally syndicated radio show, Rush Limbaugh invoked the long-discredited right-wing allegation that former Clinton White House counsel Vince Foster was murdered and that the Clintons were involved. Media Matters for America has documented previous instances in which Limbaugh suggested that the Clintons were involved in the death of Foster, whose body was found in Northern Virginia's Fort Marcy Park on July 20, 1993, despite multiple official investigations that determined Foster committed suicide.

While discussing reports that a plane carrying Sen. Barack Obama had been forced to make an emergency landing on July 7 in St. Louis, Limbaugh referred to Obama's flight “aboard Fort Marcy Airlines.” Later in the show, Limbaugh commented on a “conspiracy theory” that “Mrs. [Hillary] Clinton, through Mr. [Terry] McAuliffe, is gonna massage things out in Denver so that he [Obama] doesn't get the nomination” He added: “You couple this with Obama's plane, Fort Marcy Airlines, having to take a detour to St. Louis for a mechanical problem. You get the left-wing kooks out there, who are just convinced as they can be that the Clintons are not out of the picture, that they're still mobilizing behind the scenes to take down Obama. And believe me, they do believe this. So a ripe opportunity here for Operation Chaos.”

From the July 8 broadcast of Premiere Radio Networks' The Rush Limbaugh Show:

LIMBAUGH: In the meantime, the National Transportation Safety Board said yesterday that they are going to investigate what caused Obama's dinky little MD-80 to make an unexpected landing in St. Louis. He was traveling from Chicago to Charlotte aboard Fort Marcy Airlines when the pilot's first officer announced that they were experiencing controllability issues with the pitch of the MD-80. And so Fort Marcy Airlines had to put down at Lambert Field in St. Louis. And we found out that one of the things that happened during the flight was that in the back of one of these dinky little old MD-80s is a rear door underneath the fuselage, and it'll come down, and you can put out -- you can put the exit slide, the emergency slide. It deployed. It deployed in flight. And, of course, that would -- at altitude and speed, that would have a demonstrable effect on controllability issues. And I don't know if the pilots knew that that was the case at the time. Probably warning lights in the cockpit, even on MD-80, would indicate that.

Well, that's what I was thinking. See, I was thinking somebody like a B.D. Cooper or whatever -- a D.B. Cooper, bailing out with all the money. Maybe somebody bailed out from that door, figuring they knew what was going to happen. After all, it was Fort Marcy Airline.

[...]

LIMBAUGH: And there's this conspiracy theory is that Mrs. Clinton, through Mr. McAuliffe, is gonna massage things out in Denver so that he doesn't get the nomination. You couple this with Obama's plane, Fort Marcy Airlines, having to take a detour to St. Louis for a mechanical problem. You get the left-wing kooks out there, who are just convinced as they can be that the Clintons are not out of the picture, that they're still mobilizing behind the scenes to take down Obama. And believe me, they do believe this. So a ripe opportunity here for Operation Chaos.