President Nixon considered Sen. Ted Kennedy "such a threat that he tried to catch Kennedy cheating on his wife, even ordering aides to recruit Secret Service agents to spill secrets on the senator's behavior," the AP reports.
"Tape recordings from the Nixon White House
betray a preoccupation with the Kennedy mystique and how that might be
used against the Republican president by the last surviving brother."
In one exchange, Nixon "made clear that the Secret Service protection afforded Kennedy before the 1972 election would be rescinded after."