Agnew and Arthur (abbr.), 3 letters
Agnew and Gore, for short, 3 letters
Agnew and Gore, once (abbr.), 3 letters
Air Force Two passengers, briefly, 3 letters
Al Gore and Dan Quayle, once: Abbr., 3 letters
Biden and Bush: Abbr., 3 letters
Bush and Gore, for short, 3 letters
Bush Sr. and Nixon, e.g., 3 letters
Corp. second bananas, 3 letters
Corporate officers: Abbr., 3 letters
Eventual Oval Office hopefuls, often: Abbr., 3 letters
Executive washroom users: Abbr., 3 letters
FDR had three of them, 3 letters
Gore and Quayle, once: Abbr., 3 letters
Gore, Cheney, et al., 3 letters
Johnson and Johnson, once (abbr.), 3 letters
Nixon and Ford, once: Abbr., 3 letters
Number twos, for short, 3 letters
Presidents' underlings (abbr.), 3 letters
Puzzle theme, briefly, 3 letters
Running mates in this puzzle, 3 letters
Running mates, briefly, 3 letters
Running mates: Abbr., 3 letters
Second bananas: Abbr., 3 letters
Some board members, for short, 3 letters
Some company higher-ups, for short, 3 letters
They may report to C.E.O.'s, 3 letters
They'll debate on Oct. 11, 2012, 3 letters
Tie-breaking voters in the Sen., 3 letters
Truman and Nixon, e.g., 3 letters