Nikki Haley baffled by Christie endorsement
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South Carolina Gov. Nikki Haley (R) on Sunday blasted New Jersey Gov. Chris Christie (R) for his surprising endorsement of GOP front-runner Donald TrumpDonald TrumpFormer New York state Senate candidate charged in riot Trump called acting attorney general almost daily to push election voter fraud claim: report GOP senator clashes with radio caller who wants identity of cop who shot Babbitt MORE just before Super Tuesday.

“Chris is a dear friend, but none of us understand why he did this,” Haley told host George Stephanopoulos Sunday on ABC's "This Week." 

Haley, who has endorsed Trump’s GOP rival Sen. Marco RubioMarco Antonio RubioDemocrats join GOP in pressuring Biden over China, virus origins Senators introduce bipartisan bill to expand foreign aid partnerships GOP lawmakers request Cuba meeting with Biden MORE (R-Fla.), is seen as a powerful figure in the Republican Party.

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Christie’s unexpected endorsement of Trump, just days before Super Tuesday, added a disruptive element to the already unpredictable 2016 contest. 

When asked about the idea of Trump securing the nomination, Haley said, “It’s scary.”

“I think what he’ll do to the Republican Party is make us question who we are and what we’re about,” she said.