A nonpartisan office said Tuesday that President Donald Trump's proposed Golden Dome missile defense system could cost $1.2 trillion over two decades.

President Donald Trump's plan to put weapons in space, called the “Golden Dome for America” missile defense program, is estimated to cost much more than he originally said.

The CBO report is described as an analysis that reflects “one illustrative approach rather than an estimate of a specific Administration proposal."

Congress has only allocated $24 billion so far.