The White House aide who revealed that Richard Nixon had secretly recorded his conversations as president has died. Alexander Butterfield was 99.

Alexander Butterfield, a former top aide to President Richard Nixon whose disclosure of a secret taping system in the White House dramatically shaped the Watergate scandal, ultimately leading to Nixon ...

Butterfield served as a deputy assistant to Nixon from 1969 to 1973 ...

By Bill Trott WASHINGTON, March 9 (Reuters) - Alexander Butterfield, the White House aide who disclosed Richard Nixon's secret audio taping system, providing the "smoking gun" of the Watergate scandal ...

Alexander Butterfield, the former White House aide whose testimony revealed the existence of President Richard Nixon’s secret ...

There is tape in the Oval Office,” said Mr. Butterfield, a former White House aide, in testimony that rocked the Watergate hearings and led to the president’s resignation.

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