In a major foreign policy address, President Barack Obama has said that the United States is "unrivalled in history":
ITV News' Washington correspondent Robert Moore reports:
Obama: US is the hub of alliances unrivalled in history...America is where the world looks to for help. We are the one indispensable nation.
Obama: Just because we have the best hammer does not mean that every problem is a nail.
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Drivers are being warned of hazardous conditions as the big freeze continues to bring disruption to roads and airports.
The president will continue to fight the 'constant hostility' from the press, one of Trump's closest advisers has told ITV News.
Temperatures tumbling again tonight with a widespread sharp frost and lows of -5C or -6C and icy spots in places