Trump visit a security challenge at women's golf tournament

The event was expected to draw protesters Friday who have criticized the U.S. Golf Association, which operates the tournament, for not moving it to a different venue after audio surfaced last year in which Trump made derogatory comments about women.

While the connection between American presidents and major sporting events is well-established — the tradition of throwing out the first pitch on baseball's opening day dates back to the early 20th century, for example — this weekend poses a unique security challenge.

Trump's residence is on the golf course, which sits on more than 600 acres of rolling hills in central New Jersey farmland, where a steady stream of players and fans will be walking throughout the four days.

Maintaining boundaries between the president and the public is crucial, as is being able to adjust on the fly, according to Thom Bolsch, a retired Secret Service agent who served under Presidents George H.W. Bush, Bill Clinton and George W. Bush.