Hillary Rodham Clinton formally resigned Friday as America's 67th secretary of state, ending a four-year tenure that saw her shatter records for the number of countries visited, as John Kerry was sworn in as the country’s new diplomatic leader.
In a letter sent to President Barack Obama shortly before left the State Department for the last time 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 honor 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.
Her resignation became effective on the swearing-in of her successor, John Kerry, who took take the oath of office in a private ceremony later Friday.