Rudy Giuliani, the attorney for President Trump at the center of the blossoming scandal surrounding Trump and a phone call with the Ukrainian president, disparaged former Vice President Joe Biden’s son Monday and promised more dirt on the Biden family this week.

During an interview with Fox Business Network host Maria Bartiromo on Monday morning, Giuliani referred to Biden’s son Hunter Biden as “drug challenged” before floating that he had more news on the Biden family that he intended to release in the coming days.

“There’s a lot more evidence I’m going to put out. I put one out for today, money laundering. I’ve got a bigger one for tomorrow and the day after,” he said.

Giuliani calls Hunter Biden "drug challenged" pic.twitter.com/2W0jw75uW1 — TPM Livewire (@TPMLiveWire) September 23, 2019

Giuliani has made unsubstantiated claims in recent months about the Biden family’s ties to Ukraine and China, peddling phony allegations that Joe Biden used his political influence to help his son financially.Those allegations are believed to be at the center of a whistleblower complaint that’s sparked an ongoing battle between Congress and the White House.

Reports surfaced last week that President Trump allegedly made a “promise” during a phone call with a foreign leader. It’s been reported that Ukraine is involved in the allegations and it’s believed the call centers on a conversation Trump had with Ukrainian President Volodymyr Zelensky to urge him to dig up dirt on former Vice President Joe Biden. Trump acknowledged Sunday that “corruption” came up during a call between Trump and Ukrainian President Volodymyr Zelensky in late July.