On Sep 19, Cohen Publishes Public Letter of Lies to Coordinate Testimony for Trump. Lying to Congress is a crime (U.S. Code, title 18, section 1001). On Sep 19, Cohen publishes a letter to the public full of lies. He then testifies in-person 4 weeks later on Oct 25, 2017. Trump, Jr. and several others repeat the same lies to Congress.
Verified: We know this because Cohen confessed those lies later in Dec 2018. We know Trump, Jr. and others told the same lies because several Senators have said publicly that all their accounts were the same, but now we know Cohen lied.