Washington, July 27 - Secretary of State Hillary Clinton is now convinced that her boss and one time rival President Barack Obama has plenty of international savvy and toughness and is doing an incredible job.

'Those were appropriate issues to raise in the campaign,' said Clinton who had questioned Barack Obama's international savvy and toughness while campaigning against him last year.

'I'm here to say, as somebody who's spent an enormous amount of time and effort running against him, I think his performance in office has been incredible,' she said Sunday on the NBC programme 'Meet the Press'.

Asked specifically about her campaign criticisms, Clinton said, 'I don't feel them at all' anymore. She also said she has 'moved on' from her loss to Obama in a hard-fought Democratic primary contest.

Clinton once again sought to dispel speculation she has a rocky relationship with Obama insisting they have 'a great relationship.'

'We have an incredibly candid and open exchange,' Clinton said. 'I see him usually several times a week, at least once one-on-one.