"...US prosecutors charge Atlanta man after GrapheneOS phone wipes itself during airport search
Prosecutors say the OS erased evidence, but advocates warn the case could criminalize security tools..."
...During the questioning, agents repeatedly asked Tunick to unlock his phone and warned they would seize it if he refused. When he finally provided a passcode, the phone appeared to restart. The defense motion states that "the screen went blank, flashed several times, and the phone appeared to restart," resulting in the loss of data.
The wipe is now central to the case. Prosecutors are treating it as an intentional act to destroy evidence, while the defense argues that the search violated Tunick's constitutional rights and that the evidence should be suppressed.
The case raises questions about which constitutional rights apply at US borders, including international airports, where authorities have broader search powers. ..."
So trump's DOJ thinks that the contents of your phone are the government's to inspect without a warrant.
I would also argue that the defendant did not wipe the phone, the agents did.