Ryan Amacher, who played role in bid to damage campaign, has also made antisemitic and racist posts on social media

An influencer who played a key role in hoax claims that Democratic US senate candidate James Talarico was in a mental health facility has a long history of social media posts that favorably invoke Nazi Germany, express antisemitism and anti-Black racism, criticize miscegenation and call for “remigration” of refugees.

On X, the Lake Oswego, Oregon, resident Ryan Amacher, known online as Rhein Amacher, has described Muslims as “sub-human”, claimed that Black Africans are “monkeys” with low IQ, characterized immigrants as “vermin” and expressed support for the far right, including Germany’s AfD and the UK’s Tommy Robinson.

President has hit red states to drum up Republican support – and his increasingly strange performances are on full display

Montana, Tennessee, Alaska. In the run-up to an election, a Republican president typically wouldn’t be campaigning in these traditionally red states.

These aren’t normal times, however, and Donald Trump, an unpopular president leading an unpopular party, has held rallies in those states in the last week, seeking to drum up support. But a series of eccentric performances from the president means his behavior has been the focus, rather than any of the candidates he is backing.