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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The referendum story is rapidly heading south. Scottish voters were promised more power - now English and Welsh voters ask "what about us?"
The Scottish independence referendum was threatening to turn into a huge boost for separatist movements in many countries in Europe.
A sigh of relief across Westminster and a crushing sense of disappointment for 45% of Scotland, but Yes campaign could not have done more.