Rex Tillerson was sworn in as secretary of state by Vice President Mike Pence in a ceremony presided over by President Donald Trump at the White House on Wednesday evening.

Before Tillerson was sworn in, Mr. Trump spoke briefly in the Oval Office.

“Time to take a fresh look at the world around us and seek new solutions grounded in very ancient truths -- these truths include the fact that nations have a right to protect their interest, that all people have a right to freely pursue their own destiny and that all of us are better off when we work in concert and not in conflict,” Mr. Trump said. “And there’s rarely been conflict like we have in the world today and it’s very sad.”

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In a tweet, Mr. Trump congratulated Tillerson and said he is very excited for him, his family and the country.

Congratulations to our new Secretary of State Rex Tillerson, sworn-in this evening by @VP Mike Pence. pic.twitter.com/YvLoJZUKj8 — President Trump (@POTUS) February 2, 2017

Earlier on Wednesday, the Senate confirmed Tillerson to serve as the Trump administration’s secretary of state, making him the sixth Cabinet nominee to be approved on Capitol Hill.

Tillerson was approved in a 56-43 vote with all 52 Republicans, as well as four Democrats, voting in favor. The remaining 43 Democrats opposed Tillerson. One senator, Chris Coons (D-Delaware), did not vote.

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

This came about a week after the Senate Foreign Relations Committee voted along party lines 11-10 to advance his nomination to the floor. Sen. Marco Rubio, R-Florida, joined other skeptical Republicans like Sens. John McCain of Arizona and Lindsey Graham of South Carolina in backing Tillerson to serve as the nation’s next top diplomat.

Last month, Tillerson testified at his Senate confirmation hearing about his possible conflicts involving ExxonMobil, his position regarding U.S. sanctions against Russia and his views on climate change.

Tillerson, 64, acknowledged that he would become the nation’s chief diplomat at a “pivotal time” and listed a number of “considerable threats” that the U.S. faces, including Russia. He said, “We aren’t likely to ever be friends...our value systems are starkly different.”