US-born influencer Kate Cassidy, who started dating Payne in 2022, described his death as a "tragic accident" and regretted the fact she was no longer in Argentina when he died.
The Trump administration asserts that children of noncitizens are not "subject to the jurisdiction" of the US and therefore not entitled to citizenship.
But he says he will not be driven out, after US President Donald Trump called for transferring all Palestinians from Gaza so the US could take over the devastated territory and rebuild it for others.