Behind the Trump n' Rudy show

What we’re hearing: A White House official told me there were “a couple of Mooch references” in the West Wing last week, as Giuliani’s performance recalled Anthony Scaramucci’s frenzied 11-day stint last summer as White House communications director.

If the Giuliani circus continues unabated — with him taking media calls day and night and freelancing on legal and policy matters — White House staff will likely quit, a well-placed source tells me.

When Giuliani began opining about U.S. hostages held in North Korea, senior staff were irritated and perplexed.

And West Wingers raised their eyebrows when he took a gratuitous shot at Jared Kushner, describing the president’s son-in-law as “disposable.”