Michael Cohen, serving as Donald Trump’s personal attorney, offered his consulting services to Ford back in January 2017, though was quickly rejected.

The offer was uncovered by Robert Mueller, special counsel in the investigation of a potential Russian interference in the 2016 presidential election. Mueller’s team also interviewed Ford’s head of government affairs, Ziad Ojakli after learning about Cohen’s offer.

Cohen’s attorney did not have a comment for Reuters, while a Ford sporkeswoman also declined to speak on the matter, reports Autonews. Cohen’s offer to Ford was first reported by the Wall Street Journal, citing people familiar with the matter.

Meanwhile, AT&A CEO Randall Stephenson, who allowed his company to work with Cohen, stated on Friday that it was a “big mistake” to hire the latter in an attempt to better understand the Trump administration. AT&T paid Cohen’s firm, Essential Consultants LLC, a total of $600,000 in 2017 just for his advice.

Michael Cohen remains under investigation by Robert Mueller over payments made not only to him but also by him, such as the one received by adult film star Stormy Daniels, who sued President Trump over their so-called “hush agreement”. Earlier this year, it was reported that Cohen paid Daniels the sum of $130,000, a month before the presidential election.