Sen Markwayne Mullin in hot seat during confirmation hearing Fox News congressional correspondent Bill Melugin reports on tension during Sen. Markwayne Mullin’s, R-Okla., confirmation hearing for Homeland Security secretary on ‘Special Report.’ NEW You can now listen to Fox News articles! Senate Majority Leader John Thune , R-S.D., and National Republican Senatorial Committee chair Sen. Tim Scott, R-S.C., have both endorsed Rep. Kevin Hern, R-Okla., for U.S. Senate. "Kevin Hern is a proven

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