The Sons of Liberty is the radical group you seek.
jacobins
Radical
The radical group boycotted taxes and inspired revolts against the British. They fueled tensions between the colonies and the British.
Mostly the Ku Klux Klan and the White Anglo Saxons.
Catholics.
Son of Liberty
The radical Native American group that called for Native American lands to be returned is the American Indian Movement.
Jacobins
The largest radical group in American history is often considered to be the Ku Klux Klan (KKK), which emerged in the post-Civil War era. Known for its white supremacist ideology, the KKK has been involved in acts of terror, violence, and intimidation against African Americans and other minority groups. Over the years, it has experienced various resurgences, particularly during times of social upheaval. Its influence has waned significantly in recent decades, but it remains a symbol of radical extremism in the U.S.
KKK
The Jacobins.
Radical
jacobins
The President was approximately seven years old when the Weather Underground formed and, no, he was not a member.
The Diggers were a radical group that emerged in England during the mid-17th century. They were founded in 1649 by Gerrard Winstanley and William Everard. The group aimed to create a society of equals by cultivating and sharing common land.
The radical group boycotted taxes and inspired revolts against the British. They fueled tensions between the colonies and the British.
The Taliban is a radical muslim group that rose to power in afganistan in 1990.