The Claremont Institute is a conservative think tank based in Upland, California. After Joe Biden won the 2020 United States presidential election and Trump refused to concede, Claremont Institute senior fellow John Eastman aided Trump in his failed attempts to overturn the election results.[1] The institute has been called "America’s Trumpiest think tank"[2]

1 https://www.cnn.com/2021/09/20/politics/trump-pence-election...

2 https://www.thebulwark.com/the-decay-at-the-claremont-instit... 2