New York City Mayor Bill de Blasio was booed Monday as he delivered the ceremonial first pitch at Citi Field.
Wearing a Mets jersey, the liberal mayor was at the ballpark to mark Opening Day between the New York Mets and Washington Nationals.
In a video posted online by the New York Daily News, fans can be heard greeting de Blasio with loud boos:
Fans also turned to Twitter to report the not-so-flattering welcoming:
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