KALAMAZOO, Mich. — A lobbyist who formerly worked at Kellogg Co. says he’s seeking the Democratic nomination for a congressional seat in southwestern Michigan.

George Franklin wants the job now held by Republican U.S. Rep. Fred Upton. He says he wants to “to keep making a difference and improving lives” in the 6th District.

Franklin was vice president of government relations at Kellogg until 2005 when he started his own public affairs shop. His website says Kellogg is a client.

Upton’s name has come up as a possible candidate for U.S. Senate if he doesn’t seek another term in the House. He’s been in Congress since 1987 and has given no signal that he plans to retire.