Watch: Keith Olbermann Calls Out Trump's Most Deplorable Dog-Whistle Yet

Donald Trump has said and done a lot of horrible things—Keith Olbermann recently rattled off 176 of them for GQ's The Closer. It's hard to rank the things Trump has said in terms of most to least deplorable, but Olbermann has a nominee for the top spot: "Trump, you again dog-whistled for somebody to assassinate your opponent."And he did it twice. And then reminded everyone about it on Twitter.

On September 16, based (naturally) on a lie Trump repeats that Hillary Clinton intends to take away the Second Amendment ("I wish," said Olbermann), Trump suggested to his followers that Clinton's bodyguards should be disarmed: "Take their guns away... Take them, let's see what happens to her."

Then Trump started talking nonsense about the bombing in New York, "and suddenly," Olbermann said, "he got us yelling at him as he always does over something not quite as bad as what he had said the day before."

Olbermann is in no mood to let Trump get away with it: 

"The people who heard you say [to take Hillary's bodyguards' guns] will think you meant, 'Somebody should shoot her. See what she thinks of gun control then.' And they will think that, Trump, because that's what you meant. Because that's also what you meant when you said it in North Carolina in August."

In August, Trump said, "If [Clinton] gets to pick her judges, nothing you can do, folks. Although the Second Amendment people—maybe there is, I don't know."

As Olbermann explains, it's pretty hard for Trump to top himself at being the worst, but somehow Trump managed to do something "worse than anything ever any candidate for president has done in our history." 

Assassination, Olbermann says, is a "theme of this country's political history." Nearly one in three" U.S. presidents, he reminds us, have had assassination attempts made on their lives. Four sitting presidents were assassinated by gunshot (Lincoln, Garfield, McKinley, and Kennedy).

The ex-CIA director General Michael Hayden said that if anyone else said what Trump had said, "he'd be in the back of a police wagon now, with the Secret Service questioning him." And Olbermann thinks that's entirely appropriate.

"What kind of sick bastard are you, Trump?" Olbermann asked.

Olbermann then dealt the final blow:

"You made a call for violence against the other candidate for president, Trump—less than three months before the election. Then you repeated it two times, once on social media. And the Secret Service should now take General Hayden's cue. And you, Trump, you should be in the back of a police wagon now, being questioned. And then, you know what? Let's see what happens."

Watch: