I would love to be able to build a system that actually worked 100 percent of the time,” Sen. Mark Kelly said at POLITICO’s Security Summit, echoing doubt about President Trump’s ambitious Golden Dome initiative.

The Pentagon has submitted small, medium and large options to the White House for developing ‘Golden Dome,’ President Donald Trump’s vision for a cutting-edge missile shield that can protect the US from long-range strikes that will likely cost hundreds of billions of dollars,