In his tweets, POTUS ofter refers to:
Rigged Witch Hunt
RWH
Revolutionary Workers Headquarters
Revolutionary Workers Headquarters (RWH) was a U.S. Marxist-Leninist organization that formed out of a split from the Revolutionary Communist Party (RCP) in 1977.
https://en.wikipedia.org/wiki/Revolutionary_Workers_Headquarters
https://en.wikipedia.org/wiki/New_Communist_movement
https://www.marxists.org/history/erol/ncm-5/rwhq-bacu.htm
Revolutionary Communist Party, USA
The Revolutionary Communist Party, USA (or the RCP) is a communist party in the United States founded in 1975 and led by its chairman Bob Avakian. Coming out of the New Left, the party organizes for a revolution in the United States and internationally.
Bob Avakian's new synthesis of communism is the RCP's ideological framework, which it considers a scientific advancement of Marxism–Leninism–Maoism.
The RCP is notable for its various coalition groups, such as the World Can't Wait, Stop Patriarchy, October 22 Coalition to Stop Police Brutality, Stop Mass Incarceration Network, and Refuse Fascism.
In December 2016, party members and others co-initiated Refuse Fascism, a coalition group opposed to the presidency of Donald Trump. The statement was used by InfoWars and other far-right conspiracy theory websites to claim that RCP and Refuse Fascism were organizing a military overthrow of the government on November 4, 2017.
https://en.wikipedia.org/wiki/Revolutionary_Communist_Party,_USA