 Corona was previously a law professor, private law practitioner and member of the Cabinet under former presidents Fidel V. Ramos and Gloria Macapagal-Arroyo before being appointed to the high tribunal.On December 12, 2011, he was impeached by the House of Representatives.On May 29, 2012, he was found guilty by the Senate of committing the charges under article two of the articles of impeachment filed against him pertaining to his failure to disclose his statement of assets, liabilities and net worth to the public.