Things just keep getting worse for Rudy Giuliani. As the Trump lawyer becomes further embroiled in the impeachment inquiry against President Donald Trump, the Wall Street Journal reported Monday that Giuliani's personal business practices beyond his work for the president have also come under legal scrutiny—and reportedly have been for some time. As part of an investigation into Giuliani's dealings in Ukraine, federal prosecutors at the U.S. attorney's office for the Southern District of New York have already examined Giuliani's bank records, the Journal reports, and have been interviewing witnesses about Giuliani since at least August.

The Journal's report comes after previous reports indicated that federal prosecutors were investigating Giuliani's business relationship with Soviet-born clients Lev Parnas and Igor Fruman, who were arrested Wednesday for alleged campaign finance violations. While the Journal notes that prosecutors are interested in that relationship, their investigation into Giuliani also has a broader focus on his business in Ukraine, which began after the former New York mayor's failed 2008 presidential primary bid. Giuliani first became a strategic adviser to boxer Vitali Klitschko (also known as “Dr. Iron Fist”), who was elected as mayor of Kiev in 2014, before going on to do business in Kiev and Kharkiv, Ukraine, through his private security business Giuliani Security & Safety. The company reached a deal in May 2017 with Kharkiv's city administration to assist with the municipal emergency services, and Giuliani met with a number of top officials during his visits to Ukraine, including former President Petro Poroshenko and former Prosecutor General Yuriy Lutsenko. In addition to his work with Klitschko, the Journal reports that witnesses have been questioned about Giuliani's role in the departure of former U.S. Ambassador to Ukraine Marie Yovanovitch, whose May firing following Giuliani's pressure campaign for her ouster is seen as one of the origins of the ongoing Ukraine scandal.

The full scope of the inquiry is not yet known, and the Journal notes that it's unclear how far along prosecutors are in the investigation. True to form, however, Giuliani doesn't yet seem to be so concerned. “They can look at my Ukraine business all they want,” Giuliani told the Journal, saying he hadn't been informed of any investigation against him. (The lawyer has denied any wrongdoings in his business dealings.)

News of the federal investigation—headed by the office that Giuliani himself once ran—marks yet another terrible headline for Giuliani since the Ukraine scandal exploded, as the lawyer becomes further entwined with the alleged crimes at the impeachment inquiry's core. (In addition to the Ukraine saga, it was also separately reported last week that Trump had asked then-Secretary of State Rex Tillerson in 2017 to help get charges dropped against another Giuliani client, Iranian-Turkish gold trader Reza Zarrab.) And the lawyer hasn't exactly so far been helping his case, with a string of media appearances that have been characteristically unhinged. The news that Giuliani is being investigated for his broader Ukranian dealings also comes as the lawyer already faced possible legal scrutiny for his role in the Ukrainian scandal, potentially becoming the fall guy who keeps Trump afloat. “Even if you can’t charge President Trump with a crime, because he’s a sitting president, you could charge Giuliani with a crime if he has conspired with the president to extort the Ukrainians,” former U.S. Attorney Barb McQuade told my colleague Chris Smith in September. “Giuliani would be the president’s agent in this abuse of power.”