Electrical, but hey! we can dream can't we?
From the story here:
"Most power at the State Department was lost and employees were told to work as best they could. Other buildings affected included the Federal Reserve, the General Services Administration, Metro’s Smithsonian subway station, the Labor Department, the U.S. Park Police and the Federal Deposit Insurance Corp."
Maybe Ted Cruz & Company have been trying to shut down the government the wrong way!