The South African Constitution allows the Cabinet to override the President. The secret ballot appears to have gone against the president when Cabinet policy declared that HIV is the cause of AIDS. Again in August 2003, Cabinet promised to formulate a national treatment plan that would include ARVs. At the time the Health Ministry was still headed by Dr. Manto Tshabalala-Msimang, who had served as health minister since June 1999, and was promoting approaches to AIDS such as a diet of African potatoes and garlic, while highlighting the toxicities of antiretroviral drugs. This led critics to question whether the same leadership that opposed ARV treatment would effectively carry out the treatment plan. Implementation was slow requiring a court judgement to eventually force government to distribute ARV's. Delivery was further improved when Thabo Mbeki was ousted, Dr. Manto Tshabalala-Msimang re-deployed as the Minister of the Presidency, and Barbara Hogan deployed to Minister of Health.