Non-Hispanic white Americans who endorse "replacement thinking" are significantly more likely to support political violence, according to new research.

The terrorist who murdered 51 people in two Christchurch mosques sent out a raft of propaganda at the time of the attacks which deliberately masked his real views and plans, according to a new study.

Immigration opinions in the United States often split along party lines. But a new study raises questions about whether that divide is as fixed as it seems. Researchers looked at how one idea could tip support in either direction.