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Arnold Schwarzenegger endorsed John Kasich on Snapchat Sunday

Schwarzenegger's endorsement comes ahead of key contests in Michigan and Ohio for Kasich

CNN  — 

Arnold Schwarzenegger is endorsing Ohio Gov. John Kasich for the Republican presidential nomination – and he’s doing it in what appears to be the first high-profile endorsement to come on Snapchat.

“I want John Kasich to be the next nominee of the Republicans and also to be the next president of the United States,” Schwarzenegger said, holding a phone that he then turned to Kasich. “Here he is.”

Kasich said: “Thanks, Arnold. Love you, man.”

Schwarzenegger is also set to campaign with Kasich on Sunday.

The endorsement from the two-term former California governor comes as moderate Republicans ramp up an effort to block Donald Trump from winning the party’s nomination.

It comes ahead of two crucial contests for Kasich: Michigan’s March 8 primary, followed by Ohio’s 66-delegate winner-take-all primary.