Donna Brazile

Donna Lease Brazile (born December 15, 1959) is an American political strategist, campaign manager, political analyst, author, and Fox News contributor. She is a member of the Democratic Party, briefly serving as the interim chair of the Democratic National Committee in spring 2011, and again from July 2016 to February 2017. She was the first African American woman to direct a major presidential campaign, acting as campaign manager for Al Gore in 2000. She has also worked on several presidential campaigns for Democratic candidates, including Jesse Jackson and Walter Mondale–Geraldine Ferraro in 1984, and for Dick Gephardt in the 1988 Democratic primary.

Donna Brazile in "Election Day"
A Democratic party honcho, an aging African-American boomer in a purple pantsuit, appeared in the New Yorker Hotel to inform the crowd that Donald Trump had called and conceded the 2016 presidential election to John F. Kennedy Jr.. She then introduced the President-elect when he gave his victory speech.

Literary Comment
While the honcho is unnamed, Donna Brazile is the most likely candidate.