The trial had been set for Monday, but was postponed to give Kerik time to appeal Judge Stephen Robinson's order that revoked is bail and sent him to jail. That appeal is scheduled to be heard Wednesday in Manhattan.
Robinson said Kerik had wrongly shared secret pretrial information with a supporter.
The now-imprisoned Kerik, wearing a suit, was in court on Monday in White Plains for a session that was held mostly at the judge's bench, out of hearing of reporters. The judge said the discussion involved whether any of Kerik's lawyers have conflicts of interest.
The lawyers would not comment.