While specifics remain undecided, Trump and Musk have been in talks about how Musk could offer "formal input" on issues such as the border, the economy, and combatting voter fraud.
Those comments sent shock waves through Europe, where some leaders are preparing for a time when the US does not play the pivotal role in NATO that it does now.
The appeals court has established an expedited timetable for Trump to petition the Supreme Court to block the immunity ruling, granting him until Monday to submit an emergency stay request.
Media reports confirm that Trump's federal trial on charges of conspiring to overturn the 2020 election, initially scheduled for March 4, is no longer on the district court's calendar