Tobacco politics refers to the politics surrounding the use and distribution of tobacco. In the United States, from the 1950s until the 1990s, tobacco industries wielded great influence in shaping public opinion on the health risks of tobacco. Despite the efforts of public health advocates, scientists, and those affected by smoking, both Congress and courts favored the tobacco industry in policy and litigation. It was not until the 1990s when public health advocates had more success in litigating against tobacco industries, including the 1998 Master Settlement Agreement between major tobacco companies and 46 state attorneys general. Although public opinion in the United States on cigarette smoking is more unfavorable, many large tobacco companies continue to find success internationally.