You're a moron.
You're not doing your homework.
The federal government can REQUEST that states initiate traffic stops.
States don't have to comply. Michigan does, Texas doesn't.
In the event the state complies, the work is done BY THE STATE. Hence you have the involvement of the Michigan state police.
In the event the state doesn't comply, THE FEDS CAN DO THE WORK THEMSELVES.
Doesn't matter if it's the FBI, CBP, ICE, or anyone else. Any federal law enforcement official has the same power in this situation.
The federal government has to follow the same rules the states do. The courts have been quite clear on what those rules are.
Obviously, you're out of your league (AGAIN), and you're just spewing leftard bullshit.
Do your homework before flapping your jaw. Failure will get you a 19% approval rating