Elon Musk has lost some of his luster with Republicans since his messy public falling-out with Donald Trump last week, a new survey finds.

Fewer Republicans view Trump’s onetime government efficiency bulldog “very favorably” compared with April, according to the poll from The Associated Press-NORC Center for Public Affairs Research.

Though most Republicans continue to hold a positive view of Musk, their diminished fervor suggests his vocal opposition to Trump’s signature spending and tax cut legislation — and Musk’s subsequent online political and personal taunts — may have cost him some enthusiasm within the party.