sentences:  Despite Henry's support for internal improvements, he failed to notify Virgnia's representatives of their appointment to meet with Maryland over navigation on the Potomac, and only two, including George Mason, attended what became known as the Mount Vernon Conference (1785).Edmund Randolph, unable to attend because of lack of timely notification, hinted that the reason for Henry's neglect was not forgetfulness, but a growing hostility towards things federal.In 1786, Henry was more assiduous in notifying delegates to the Annapolis Conference called with the support of Madison, who was appointed a delegate.