California’s two Democratic Senate candidates disagree on how many times they will debate before the general election.

Attorney General Kamala Harris and Rep. Loretta Sanchez agreed to a debate at California State University, Los Angeles on Oct. 5. Harris’ campaign also agreed to a Sept. 20 debate in Sacramento, which Sanchez’s team rejected.

Sanchez’s campaign proposed three additional debates to be held in Los Angeles. But Harris rejected those.

The dispute might be based on regional differences. The 46th District that Sanchez represents is based in the Orange County, which is close to Los Angeles. Conversely, Harris previously served as district attorney of San Francisco, and, as attorney general, is largely based in Sacramento.