President Donald Trump’s former personal attorney, Michael Cohen, on Thursday may have undermined Donald Trump Jr.’s testimony to Congress that he had no knowledge of a real estate deal involving the Kremlin.

On Thursday, Cohen pleaded guilty to making false statements to Congress about plans to build a Trump Tower in Moscow. In the pleading, Cohen admitted that he “briefed [Trump] family members” about the project.

Former Defense Department special counsel Ryan Goodman pointed out that Cohen’s plea is at odds with information Trump’s son provided to a Senate committee.

Trump Jr. testified that he “wasn’t involved” in the deal.

And when asked if he was aware that Cohen had reached out to the Kremlin, Trump Jr. replied: “No, I was not.”

It was not immediately clear if special counsel Robert Mueller’s office would also charge Trump Jr. for making false statements to Congress.