Read the thesis statement from an argumentative essay about former US president Richard Nixon. President Nixon disgraced the US presidency through his involvement in the Watergate Scandal. This marks him as history’s worst president. Which statement could the essay’s writer use to support the central claim made here? It was under Nixon’s leadership that the Vietnam War ended. The Watergate Scandal created a strong national distrust of the government. Nixon began practicing law in 1937. Nixon’s trip to China opened relations between that nation and the United States.