Rex Tillerson on Wednesday night was officially sworn in as secretary of state.

The former ExxonMobil executive was confirmed as the nation's top diplomat earlier in the day by the Senate by a 56-43 vote.

"You understand that the job of our diplomats and the mission of the State Department is to serve the interests of the United States of America, to make our nation safer, our country more prosperous and our people much more secure," President Trump said before Tillerson was sworn in by Vice President Mike Pence.

"This is where you were meant to be, right here, today, at this crossroads in history," Trump said. "Though you inherit enormous challenges in the Middle East and around the world, I do believe we can achieve peace and stability in these very, very troubled times."

After being sworn in, Tillerson said he's ready for the "extraordinary opportunity" to serve his country and the interests of all Americans.

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