Ballsalen Donald Trump planlegger i Det hvite hus, kommer til å koste 600 millioner dollar, anslår entreprenøren. Det er 200 millioner mer enn Trump har anslått.

Internal cost estimates suggest the project was always expected to depend significantly on taxpayer money

The ballroom that Donald Trump wants at all costs in the White House, by having the East Wing demolished, will ultimately cost 600 million dollars, over half of which will come…