President Trump’s move to fire Federal Reserve board of governors member Lisa Cook raised a host of questions over the unprecedented nature of his decision.

Chief among them is whether the allegations he cited reach the standard of cause needed to oust her — and to win that fight legally.

The president alleged Cook committed mortgage fraud by listing two different primary residences on official documents within weeks. Cook's attorney said Tuesday she plans to file a lawsuit challenging the attempt to fire her, and she has insisted that she will not resign from her role.

That lawsuit could come as soon as Wednesday, setting up a legal battle that could reach all the way up to the Supreme Court.

Here are five questions surrounding Cook’s ouster.

When can a president fire a Fed official?

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