Leading Republican candidate Sam Brownback plans to announce a running mate next week in his bid for Kansas governor, and some speculation Thursday centered on a former legislator from a Kansas City suburb.

The mayor of a nearby suburb who'd been seen for weeks as a potential lieutenant governor choice said she's not on Brownback's ticket.

Brownback, who's giving up his U.S. Senate seat to seek the governor's office this year, scheduled rallies in eight cities Tuesday and Wednesday to introduce his running mate. The first event is 9 a.m. Tuesday at an Overland Park shopping center.

Fellow Republicans most often mentioned longtime Leawood Mayor Peggy Dunn and former state Sen. Nick Jordan, of Shawnee, as potential running mates for Brownback.

Jordan did not return telephone messages left at his home.

Dunn said, "I am not Sam's running mate."