Witnesses said the woman was crossing the road when she was hit by a white sedan.
Democratic leaders gathered in Kapolei to rally supporters and encourage voter participation ahead of the Nov. 3 general election.
Carlos Duque was summoned to appear in federal court Oct. 28 on charges he accepted $1 million in bribes tied to a Hawaii contract.
Officers were called to the park around 9:30 p.m.
FEMA said its Public Assistance program is available to certain nonprofits impacted by the Sept. 6-9 storm, including houses of worship.