Protest by backers of the US president's claim that election was stolen from him has drawn in white supremacists and other hard-right groups

Parler, which has been a home for QAnon supporters and white nationalists, sees surge in users following election as leading companies crack down on misinformation and extremism

Alleged scheme involved months of planning, rehearsals to snatch Gretchen Whitmer from vacation home; suspects aiming to incite uprising linked to 'boogaloo' group

Hardy Lloyd urged social media users to 'target' Pennsylvania Jewish neighborhood; said assault weapon opponents should have their 'families murdered'

Spike of nearly 8,000 mainly due to inclusion of members of far-right Alternative for Germany party; number of far-left and Islamic extremists each up by some 1,500

Philip Manshaus claims his actions were to ensure 'survival of white race'; defense lawyer pleads mental illness, says defendant believes Europe is under threat from Muslims, Jews

Prosecutors say weapons found at suspect's apartment, along with 'data files with radical right-wing contents'; man said to cite Christchurch attack in online chat

The Boogaloo Bois, a nascent group pursuing an uprising against the state, wants to start a new civil war -- and all ethnicities are welcome

Federal police say 4 of the suspects wanted to carry out terror attacks to provoke 'civil war-like situation'

Suspect, investigated over extremism, allegedly hosted party at which two other soldiers made Nazi salute, which is illegal in Germany