This is what I thought, until I looked at the members. Jeff Flake and Lindsey Graham are both on that committee. Trump may pay a price for all his insults, and these two might support the Dems here.
Can they bring criminal charges? I think not, so they aren’t confined to the law.
Legally there is no case - Trump fired Comey based upon the recommendation from DOJ. There was ample good cause for the decision.
A finding from the committee might serve as a basis for impeachment.
This might be a very big deal.
Impeachments begin in the House.