Garcia, 41, and Mendez, 33, will exchange vows at First Congregational Church in downtown Long Beach.

More than 700 people have been invited, including family, friends, members of the media, political operatives, and financial donors to his various campaigns.

After the marriage ceremony, guests will head over to the Long Beach Museum of Art for a champagne toast and cake.

Garcia said he and Mendez are following wedding gift guidelines from the

California Fair Political Practices Commission

, and they will be publicly reported.