President Donald Trump has laid out new details of his ambitious plan to build a “Golden Dome” missile system to protect the United States from foreign attacks, saying it will be complete before he leaves office.

President Donald Trump unveiled his $175 billion plan to mimic that system. The U.S. version has been dubbed the Golden Dome, in honor of Trump's favorite decorative mo

Although Trump has requested an initial $25 billion for the Golden Dome in a proposed tax bill currently advancing through Congress, the program faces significant budgetary hurdles. According to a recent estimate from the Congressional Budget Office, just the space-based elements of the program could total $542 billion over the next two decades.