South Koreans held the next six spots on the leaderboard, with 17-year-old Choi Hye Jin and Amy Yang sharing second on 208 after third-round 70s. That's Cristie Kerr, who was five shots off the lead.
Amid cheering and jeering, protests and selfies, the AP reports that golfers were distracted - "crowds were asked to keep it down" particularly around the 15th and 16th holes where Trump had camped out, but apparently to little or no avail. "Anything that I can do to bring about a change in that situation, I will be there doing it".
Park Sung Hyun was fourth on 210 with world No. "Going in I was confident with my game but I didn't know how it would be since the course is really tough but I just took it shot by shot and had a lot of fun". Top-ranked Ryu So-yeon (71), the only two-time victor this year on the LPGA Tour, Lee Mi-rim (67) and Lee Jeong-eun (73) were 5 under.
Feng's only major victory came at the 2012 LPGA Championship, her first U.S. triumph. "He might think he has all this power and he's so strong, but we're stronger than he is", she said. "An amateur player is co-leading for the first time in many decades - very exciting!", the United States president wrote on Twitter on Monday.
Lizette Salas, who finished tied for 15th was next.
"It is golf; bad shots do happen". The trend continued on the back nine when Szeryk had bogeys on the 10, 11, and 13 holes, putting her 5-over-par (77) for the day.
With the arrival of the president on Friday afternoon, security was stepped up on Saturday. The UltraViolet members stood silently, looking toward the presidential box, after Trump arrived to loud cheers from supporters. However, she flubbed a couple of chips near the green and took a triple bogey. She ended seventh among the amateurs.
Defending champion Brittany Lang saw any chance of repeating end with an 8-over 80.