A new constitution was adopted in 1940, which engineered radical progressive ideas, including the right to labor and health care. Batista was elected president in the same year, holding the post until 1944. He is so far the only non-white Cuban to win the nation's highest political office. His government carried out major social reforms. Several members of the Communist Party held office under his administration. Cuban armed forces were not greatly involved in combat during World War II—though president Batista did suggest a joint U.S.-Latin American assault on Francoist Spain to overthrow its authoritarian regime. Cuba lost six merchant ships during the war, and the Cuban Navy was credited with sinking the .