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Is US trillion dollar coin 'nuts'?

A campaign is gathering pace on the American left to mint a single platinum coin and assign it a face value of a thousand billion dollars as a way of resolving the impending row over the US debt ceiling.

A campaign is gathering pace on the American left to mint a single platinum coin and assign it a face value of a thousand billion dollars as a neat way of resolving the impending row between Congress and the White House over the US debt ceiling.

A Democratic congressman has endorsed the idea and a Republican one has introduced a bill to block it.

Newsnight's Gavin Esler was joined by Bloomberg's Josh Barro and James Pethokoukis from American Enterprise Institute to debate its merits.