The Maine branch of Sen. Barack Obama's presidential campaign is planning an event at 11 a.m. Wednesday at Portland City Hall Plaza to announce that Robert A.G. Monks and Sherry Huber will serve as co-chairs of Maine Republicans for Obama.

Monks is the former chairman of the Maine Republican Party and has been an advocate for improving corporate governance in the United States.

Huber served in the Maine House of Representatives from 1976-1982 and has worked on conservation issues in the state. Together, they will spearhead grassroots efforts to turn out support for Barack Obama among Republicans in Maine, according to the campaign.