Michelle shared their trick on"The Late Show with Stephen Colbert"in 2018.
If she did have something to say regarding politics, Michelle wouldn’t tell Barack directly.
She told Colbert: “If I wanted to deliver a real message, I did it through staffs.

So I had my chief of staff talk to his chief of staff.
Which was the same thing essentially, but it avoided us having discussions about stuff at home.”
Michelle also pointed out that she and her husband were almost always in agreement.

… She’s more skeptical about politics and more mindful of the sacrifices to the family."
The couple are now able to enjoy themselves more without as much stress in their life.
It’s unlikely other members of the Obama family will enter politics.
“It will never happen.”