FILE - H.R. Haldeman, former top aide to President Richard Nixon, testifies before the Senate Watergate Committee in Washington, on July 31, 1973. Behind Haldeman are his attorneys John J. Wilson, left, and Frank Strickler. The traumas of Watergate and Jan. 6 are a half century apart, in vastly different eras, and they were about different things. But in both episodes, a president tried to do an end run around democracy. Friday is the 50th anniversary of the Watergate break-in that eventually consumed Richard Nixon's presidency. (AP Photo)