Another widespread scandal was when politicians used miles gathered on flights payed by the public for private flights. The biggest scandal in the last two decades though was the CDU-Parteispendenaffäre (Big donations to the CDU from unknown donors). But the former Bundeskanzler Kohl took the secret to his grave and Schäuble who accepted illegal donations from a well known arms dealer is still a well respected politician and serves as president (roughly similar to the speaker role) of the Bundestag.