Plainfield mayor to face 3 challengers in June Democratic primary MyCentralJersey.com PLAINFIELD – Mayor Adrian Mapp will face three challengers in the Democratic primary as he seeks a third term in office. Second Ward Councilman Sean McKenna, Board of Education member Richard A. Wyatt Jr. and Dr. Henrilynn Ibezim have all filed petitions to run against Mapp in the June 8 primary. Mapp, who is seeking his third term in office, is running on the Regular Democratic Organization of Union County slate, and is joined by Councilwoman Stacey Welch, who is seeking election to the Fourth Ward Council seat that she was appointed to.