How would that work?
Mitt gets all his paperwork together and appears before the President and Apostles?
Benson was one of the LDS Apostles. That's probably why he needed permission.
There's a parallel to the Catholic situation. Robert Drinan, a Jesuit, needed Church permission to run for Congress (he didn't get it but ran anyway, as did John McLaughlin). John Kennedy, a layman, didn't need any permission.
Who cares?
WIKI reported it; so it's either TRUE or not.
That's probably why he needed permission.
Probably?