Robert Costello, a lawyer who had a falling out with the star government witness in the Trump investigation, arrived Monday afternoon at the building where the grand jury has been meeting after being invited to appear before the panel. His testimony was expected to give the former president an indirect opportunity to make a case that he shouldn't face criminal charges over hush money paid to a porn star during his 2016 campaign.
Costello was asked to appear by the Manhattan district attorney's office after he said he had information raising questions about the credibility of Michael Cohen, a key witness in the investigation, according to a person familiar with the matter who insisted on anonymity to discuss secret legal proceedings.
Donald Trump’s lawyer tasked with searching for classified documents at Mar-a-Lago after the justice department issued...
