He wanted it to return the United States back the way is was before World War 1 and Many Americans disagreed with Woodrow Wilson's policies during World War I and his support for the creation of the League of Nations. Warren Harding's emphasis on the "return to normalcy" during his campaign drew support from people who wanted the U.S. to be more like it had been before World War I. These people favored free enterprise, lower income taxes, high import tariffs, and an isolationist policy regarding international affairs. Harding was able to get many votes from people who blamed Wilson for the U.S. entry into World War I, and Harding won the election.
What are the options? I cannot tell you the answer unless I can see the options.
To contain communism, thinking was Vietnam went comunist it would spread more globally.
It was because they didn't have the bill of rights, like they were used to in the Magna Carta when they were apart of the English colonies.