Trump Proposes Ban on Communists and Marxists Entering U.S.

Current US immigration laws already prevent communists and Marxists from becoming citizens or holding green cards
Trump wants to bar communists and Marxists from entering the country through his executive authority
The proposal is reminiscent of Trump's travel ban on Muslims which was upheld by the Supreme Court
The ban would primarily impact China, where millions of people are members of the Communist Party
Legal experts question whether the proposal would be constitutional and how it could be effectively implemented