Acknowledging the crowds, the president waved, pointed and gave a thumbs-up, prompting squeals from a group of schoolgirls.
Protests slamming Trump and the USGA for staging the crown jewel of women's golf at a course owned by what demonstrators call "a self-admitted serial sexual predator and unapologetic misogynist" began on Friday and will continue throughout the weekend.
BEDMINSTER, N.J. The U.S. Women's Open has not had a repeat victor since Karrie Webb in 2001 and the chances of Brittany Lang doing it this year don't seem good.
United States player Lexi Thompson - who has played with Trump in Florida - said she felt "pretty comfortable" playing in front of him on Friday, adding that it was "definitely entertaining" to have him at the course.
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 previous year in which Trump made derogatory comments about women.
U.S. President Donald Trump arrived at Trump National Golf Club on Friday to attend the U.S. Women's Open golf championship being staged at his course. Ryan O'Toole, who said she was happy to finish her round before the president's arrival, noted that she allowed 20 additional minutes to get through security and to the course.
"It's really wonderful that the president of the United States is here to watch us play golf and on a tremendous golf course", said Henderson, who was tied for 10th place. But that did not stop Trump from becoming the first sitting president to attend the women's event and hogging the spotlight from the competitors.
The previous two instances of a sitting president attending a U.S. national golf championship were Warren Harding in 1921 and Bill Clinton in 1997 at the U.S. Open men's championships.
"I heard people like kind of screaming so that's what I was trying to find out, like why they were screaming", tourney leader Shanshan Feng said after carding a second-round 2-under 70. "But I was still really focusing on my game".
Another South Korean, Seon Woo Bae, is in fifth place on five-under with Spaniard Carlota Ciganda tied in sixth place on four-under with three players.
"I didn't hit the best shot in front of him", she said with a laugh.
If hes actually going to go to one of the tee boxes or greens, we would have actually swept the area and everyone thats around there would have been prescreened, Bolsch said.
The USGA faced pressure to move the women's tournament because of Trump's previous crude remarks about women.
Seon Woo Bae, a victor in South Korea a year ago, was alone in fifth place at 5 under after a 69.
Second-ranked Ariya Jutanugarn and two-time Open champion Inbee Park also missed the cut.