John Kerry, who has been officially sworn in as the new US Secretary of State, said America would "do what was necessary" to stand up to "extremism, terrorism, chaos and evil".
More top news
Canada, Mexico, Australia, Argentina, Brazil, South Korea will also be free from the levies announced by Donald Trump.
Bolton is viewed with contempt by almost the entire foreign policy establishment in Washington.
A top temperature today of 13 Celsius (55F).