The events at the Capitol of 6 January 2021 were not only of a political importance. They can have legal consequences for the former US President Donald Trump and his advisors, including his attorneys. The case of John C. Eastman shows the problems arising from combining different professional and social roles as an attorney, an academic teacher, and a campaign committee member. It also gives some hints as to what precautions an attorney should undertake to adequately safeguard information received from their clients in confidence.