Hillary Rodham Clinton ended a four-year tenure as Secretary of State that made her one of America's most popular public figures, despite leaving on a bitter note amid a partisan feud over the attack on the US diplomatic mission in Libya. John Kerry was sworn in to replace her.
In a letter sent to President Barack Obama shortly before she left the State Department for the last time Friday in her official capacity, Clinton thanked her former foe for the 2008 Democratic presidential nomination for the opportunity to serve in his administration. Clinton said it had been an honour to be part of his Cabinet.
"I am more convinced than ever in the strength and staying power of America's global leadership and our capacity to be a force for good in the world," she said in the letter.
Clinton shattered records for the number of countries visited by a US Secretary of State. The former First Lady, once considered a divisive figure in American politics, leaves office as one of its most popular. But she remained coy about whether she would run for president in 2016.
"I am making no decisions, but I would never give that advice to someone that I wouldn't take myself," she said in an interview with The Associated Press on Thursday. "If you believe you can make a difference, not just in politics, in public service, in advocacy around all these important issues, then you have to be prepared to accept that you are not going to get 100 percent approval."
Her resignation became effective at 4 pm on Friday, when Supreme Court Justice Elena Kagan swore in John Kerry as the top US diplomat. The former senator and 2004 Democratic presidential candidate is the 68th Secretary of State.
"I'm just very, very honored to be sworn in and I'm very anxious to get to work," Kerry told reporters after the private ceremony at the Capitol.
"I'll be reporting Monday morning at nine o'clock to do my part," he said, but refused to say what global hotspot he would visit first.
Clinton also left office with a slap at critics of the Obama administration's handling of the September attack on a US diplomatic mission in Libya. She told the AP that critics of the administration's handling of the attack don't live in an "evidence-based world," and their refusal to "accept the facts" is unfortunate and regrettable for the political system.
Clinton said the attack in Benghazi was the low point of her time as America's top diplomat. But she suggested that the furor over the assault would not affect whether she runs for president in 2016.
Although she insisted that she has not decided what her future holds, she said she "absolutely" still plans to make a difference on issues she cares about in speeches and in a sequel to her 2003 memoir, "Living History," that will focus largely on her years as secretary of state.
Clinton spoke to the AP on Thursday in her outer office on the seventh floor of the State Department less than 24 hours before she walks out for a final time as boss. She was relaxed but clearly perturbed by allegations from Republican lawmakers and commentators that the administration had intentionally misled the public about whether the attack was a protest gone awry or a terrorist attack, or intentionally withheld additional security for diplomatic personnel in Libya knowing that an attack could happen.
An independent panel she convened to look into the incident was scathing in its criticism of the State Department and singled out four officials for serious management and leadership failures. But it also determined that there was no guarantee that extra personnel could have prevented the deaths of the US ambassador to Libya, Chris Stevens, and three other Americans. Clinton herself was not blamed, although she has said she accepted responsibility for the situation.
"I was so unhappy with the way that some people refused to accept the facts, refused to accept the findings of an independent Accountability Review Board, politicized everything about this terrible attack," she said. "My job is to admit that we have to make improvements and we're going to."
Hours later a suicide bomber linked to a domestic terror group exploded a device just outside the US Embassy in Ankara, Turkey, killing himself and a guard. Clinton told State Department staff on Friday that the attack showed again how "we live in very complex and dangerous times."
Clinton faced a barrage of hostile questions about Benghazi from Republican lawmakers when she testified before Congress recently in appearances that were delayed from December because of illness. Afterward, some lawmakers continued to accuse her and the administration of withholding evidence. Sen. Lindsey Graham, a Republican, told a television interviewer that he thought Clinton was getting "away with murder."
In the interview, Clinton had little patience for such allegations.
"There are some people in politics and in the press who can't be confused by the facts," she said. "They just will not live in an evidence-based world. And that's regrettable. It's regrettable for our political system and for the people who serve our government in very dangerous, difficult circumstances."
Because of that, she said, the partisan divide should not dissuade anyone with a cause from getting involved in politics, and she hinted strongly that a divisive atmosphere would not stop her in any future endeavor. "You have to have a thick skin because (politics) is just going to be a contact sport as far as we can look into the future."