Media mogul Rupert Murdoch on Monday jumped into the fray over resettling Syrian refugees. His “maybe” solution: accept those that are “proven Christians.” The Australian American said on Twitter:

“Obama facing enormous opposition in accepting refugees. Maybe make special exception for proven Christians.”

His comments come as some governors protest the resettlement of Syrian refugees in the United States, in the wake of Friday’s attacks in Paris. As of Monday night, at least 23 governors — 22 of whom are Republican — have taken action to prevent refugees settling in their states, including signing executive orders, sending requests to federal officials and other means. Legally, there is likely little governors can do to prevent refugees from coming, experts say.

The Obama administration has not addressed the governors directly, but has said it will go forward with plans to accept 10,000 refugees from the war-torn country.

“We do not close our hearts to these victims of such violence,” the president tweeted Monday on @POTUS.