At the start of President Obama's interview on the "Late Show with David Letterman," the host asked his guest whether he wanted to say anything to the empty chair next to him.
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Judges will rule if Brexit talks can start without consent from MPs and without formal input from legislatures in Wales, NI and Scotland.
Another cold night across much of England and Wales. Milder conditions pushing into the west of Ireland and Scotland.
US officials have denied that the US military is coordinating with Russia in Syria.