Still hanging on to the presidency, though, according to CBS:
CAIRO - State TV reports that President Hosni Mubarak has resigned from Egypt's ruling party.
His son, Gamal Mubarak, and the National Democratic Party's secretary-general, Safwat el-Sharif, have also resigned, in a new gesture to protesters carrying out a 12-day-old wave of anti-government demonstrations.
However, Mubarak still continues as the nation's president.
It was also reported that another member of the National Democratic Party, Dr. Hossam Badrawy, who is generally well-accepted by the public, has been named Secretary General of the NDP.