German journalist Oliver Janich just found out, that Whitaker could stay acting AG up to ~630 days.
If the senat don´t confirm the nominee of the presend, Whitaker would stay for 210 more days.. that could be repated :D
Link to the executive order(s) and acts Janich is refering to:
https://obamawhitehouse.archives.gov/the-press-office/2017/01/13/executive-order-providing-order-succession-within-department-justice