President Joe Biden is set to tap Adm. Lisa Franchetti to lead the Navy, which would make her the first woman to serve as a member of the military’s Joint Chiefs of Staff, according to a Defense Department official.

If confirmed, Franchetti would replace Chief of Naval Operations Adm. Mike Gilday, whose four-term year ends this fall.

But Franchetti will join a nomination logjam in the Senate, as Republican Sen. Tommy Tuberville is single-handedly blocking more than 270 military promotions over the Pentagon’s abortion travel policy.