Fans booed Donald Trump at the US Open last night

By Theodore Schleifer CNN

9 years ago

Sep 8, 2015; New York, NY, USA; Donald Trump on day nine of the 2015 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. (Robert Deutsch/USA Today Sports)

Sep 8, 2015; New York, NY, USA; Donald Trump on day nine of the 2015 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. (Jerry Lai/USA Today Sports)

U.S. Republican presidential candidate Donald Trump (2nd from L) watches with his wife Melania as Serena Williams of the U.S. plays against her sister and compatriot Venus Williams in their quarterfinals match at the U.S. Open Championships tennis tournament in New York, September 8, 2015. (Lucas Jackson/Reuters)

U.S. Republican presidential candidate Donald Trump (C) watches as Serena Williams of the U.S. plays against her sister and compatriot Venus Williams in their quarterfinals match at the U.S. Open Championships tennis tournament in New York, September 8, 2015. (Carlo Allegri/Reuters)

Sep 8, 2015; New York, NY, USA; Donald Trump on day nine of the 2015 U.S. Open tennis tournament at USTA Billie Jean King National Tennis Center. (Robert Deutsch/USA Today Sports)

WASHINGTON — Donald Trump found himself the target of audible boos on Tuesday as he entered the U.S. Open quarterfinals in New York on Tuesday evening.

The GOP presidential front-runner, on hand to watch defending U.S. Open champion and top-ranked Serena Williams defeat her older sister, Venus, was booed as he entered the stadium, according to a video posted by ESPN.

The reaction came as Trump, a New York native, walked alongside his wife, Melania, by media near the stadium entrance.

Celebrity Alan Cumming apparently enjoyed the occasion, tweeting, “So much fun joining in the mass collective boo at Donald Trump here at the U.S. Open!!”

Trump is leading nearly every Republican poll both nationally and in early voting states. He is scheduled to leave New York tomorrow to appear at a rally in Washington with Ted Cruz to protest the Iranian nuclear deal.