At least one Democratic member of the Senate Foreign Relations Committee won’t give his stamp of approval to Secretary of State-designee Rex Tillerson after Wednesday’s hearing.

Oregon Sen. Jeff Merkley said Thursday that, after exploring more of Tillerson’s record as Exxon Mobil’s chief executive, he won’t support Tillerson’s confirmation. He said Tillerson doesn’t have the “moral clarity” needed to be the nation’s top diplomat.