Europe’s victory got here amid torrents of verbal abuse from a New York crowd which was closely criticised for its behaviour.
American nice Tom Watson, the eight-time main champion who twice led the US group in 1993 and 2014, stated he was “ashamed” of the unruly scenes.
“I would prefer to apologise for the impolite and mean-spirited behaviour from our American crowd at Bethpage,” stated 76-year-old Watson.
European talisman Rory McIlroy was the prime goal from the American galleries, whereas his spouse Erica was hit by a drinks cup flung from one of many stands.
After sealing victory on Sunday, McIlroy stated the extent of the private insults was unacceptable.
BBC Sport has contacted New York State Police for figures of any arrest and ejections over the weekend.
“[The behaviour] must be talked about and must be addressed,” stated Donald, who praised law enforcement officials for his or her dealing with of a febrile state of affairs.
“I do not know the way you rein it in, the odd individuals who shout. It’s a tough one.
“We might love to only play and the US gamers have been nice on making an attempt to quieten crowd.
“Many People have been coming as much as say they how embarrassed they have been for a few of their followers. It was a small subset and do not know the way you management it.”
Whereas Watson was gracious on social media, there has not been an official apology from the US group.
Nevertheless, Donald thanked US counterpart Keegan Bradley and his gamers for making an attempt to ask the group to indicate respect.
“I believe the People have been performing in the precise manner,” stated Donald.
“They perceive they need the group to assist them however to not be vitriolic towards us.”
BBC Sport has contacted the PGA of America – which organised the event – for a response to Donald and McIlroy’s feedback.
