Rudy Giuliani has stepped in it again. With the walls seemingly closing in on his client, Donald Trump, Giuliani spent his Sunday morning touring the talk shows, where he continued his “nothing to see here, folks!” approach to questions about illegal hush agreements and collusion with Moscow.

The Trump lawyer’s worst follies came during his appearance on This Week with George Stephanopoulos, who was fresh off a post-sentencing interview with Michael Cohen, the president’s former fixer. Cohen, who has spent the past week publicly skewering his former boss, reiterated that he violated campaign-finance law at his boss’s direction; that Trump did, in fact, have business dealings with Russia; and that the president was continuing to lie on both counts. Giuliani’s response? Sure, the president is lying, but he’s not under oath, so it’s cool.

“He’s got to do a lot of singing to get out of the three years, and he will say whatever he has to say,” Giuliani told Stephanopoulos of Cohen. “He’s changed his story four or five times.”

“So has the president,” Stephanopoulos said.

“The president’s not under oath,” Giuliani replied.

After appearing to acknowledge that Trump’s word cannot be trusted, Giuliani continued his rambling defense by seeming to suggest that his client may have colluded with Russia:

STEPHANOPOULOS: Now, the special counsel went on to say that they found Cohen credible—provided valuable information about Russia-related matters for its investigation. Also, that his contacts with persons connected to the White House in 2017 and 2018—they seem to be getting at, there, both collusion and obstruction.

GIULIANI: Isn’t that prosecution by innuendo? I have no idea what they’re talking about. Beyond what you just said, I have no idea what they’re talking about . . .

STEPHANOPOULOS: Well, let me ask you a few specifics.

GIULIANI: I have no—I have no idea—I know that collusion is not a crime. It was over with by the time of the election.

To reiterate the Giuliani line of defense: collusion is not a crime, and even if it were, the whole business was wrapped up by November 2016. So what’s the big deal? To be fair to Giuliani, defending an unpredictable client who spends half his day tweeting all-caps attacks at investigators is a near-impossible task. On the other hand, each time he appears on TV, the former mayor seems to hurt Trump’s cause. Back in May, shortly after becoming the public face of the president’s legal team, Giuliani accidentally implicated Trump in the campaign-finance violations to which Cohen would later plead guilty. Then, in July, he attempted to brush off allegations that Trump had sought to obstruct justice . . . by explaining how Trump would obstruct justice if he really wanted to.

For a time, as my colleague Gabriel Sherman reported, Giuliani was yanked from the airwaves. But in recent weeks, he has re-emerged to put his foot in his mouth once more, telling the Daily Beast as recently as last Wednesday that “nobody got killed, nobody got robbed” in the course of the hush payments, and that therefore “this was not a big crime.”

“Giuliani seemingly thought he was doing President Trump a favor,” Paul S. Ryan, vice president of policy and litigation at the government watchdog group Common Cause, told The New York Times following May’s snafu. “But instead, [he] made Trump’s legal problems much, much worse.”