US President Barack Obama failed to seal a sweeping trade pact with South Korea because he felt it was not in the best interests of the United States, secretary of state Hillary Clinton said on Sunday.
"The President didn't finalize a deal in Korea because he was not satisfied that the deal was in the best interests of America," the top US diplomat told CBS.
"And that's what a president is supposed to do, and so he did the right thing," she added.
Obama and South Korean President Lee Myung-Bak said earlier this month that they needed more time to negotiate the accord, despite intense talks in Seoul.
The Obama administration has been pressing South Korea to give greater access to US cars and beef.