Washington (CNN) As President Donald Trump and Attorney General Jeff Sessions continue their war of words, the question has once again arisen of what would happen at the Justice Department is Sessions leaves.

There's no immediate indication Trump is ready to fire Sessions, or that Sessions is ready to quit, but here's what could happen if the attorney general's office is empty:

1. Who is immediately in charge?

If Sessions is fired, then Deputy Attorney General Rod Rosenstein, the current No. 2 at the Justice Department, would automatically take his place -- at least, according to statute and the President's own executive order detailing the succession plan from March.

But just as Trump has been unhappy with Sessions for recusing himself from the investigation of Russian interference in the 2016 election, he hasn't had kind words for Rosenstein, the man now overseeing the work of special counsel Robert Mueller.

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