In the twentieth century, Christian apocalypticism thought it saw the end of days in the midst of baleful signs, including historical biblical criticism, the return of the Jews to the Holy Land, evolutionary science, and the United Nations. In the United States, the consolidation of power in the federal government at the expense of federalism (and, theoretically, liberty as well) was apocalyptically taken as a precursor to the end. According to Matt Sutton, “As the government grew in response to industrialization, fundamentalists concluded that the rapture was approaching.” The trajectory, in other words, was viewed as headed toward a global super-state under the thumb of a seemingly benevolent ruler. Franklin D. Roosevelt’s “consolidation of power across more than three terms in the White House, his efforts to undermine the autonomy of the Supreme Court, his dream of a global United Nations and especially his rapid expansion of the government confirmed what many fundamentalists had feared: the United States was lining up with Europe in preparation for a new world dictator. This “leader would ultimately prove to be the Antichrist, who, after the so-called rapture of true saints to heaven, would lead humanity through a great tribulation culminating in the second coming and Armageddon.”
The full essay is at "Was Obama the Antichrist?"