Members of Congress almost never let their guard down when cameras are in the room because they don’t like photographs that show them doing anything other than their jobs. Tom Williams is the master at catching lawmakers in ‘real’ moments because he understands that the closer his subjects get to the podium, the more on-guard they become. By arriving early and staying late at events, he becomes witness to unstaged interactions, such as this one Wednesday with Rep. Peter DeFazio and Sens. Bernie Sanders and Sheldon Whitehouse.