the most valuable of the many parties are the Democratic and Patriotic Forces or FDP (an alliance of Convention for Alternative Democracy, Congolese Labor Party or PCT, Liberal Republican Party, National Union for Democracy and Progress, Patriotic Union for the National Reconstruction, and Union for the National Renewal) [Denis SASSOU-NGUESSO, president]; Association for Democracy and Social Progress or RDPS [Jean-Pierre Thystere TCHICAYA, president]; Congolese Movement for Democracy and Integral Development or MCDDI [Michel MAMPOUYA]; Pan-African Union for Social Development or UPADS [Martin MBERI]; Union of Democratic Forces or UFD [Sebastian EBAO]