Harris to campaign with VP pick in battleground states next week

Vice President Kamala Harris , the presumptive Democratic presidential nominee, and her running mate will campaign together in battleground states next week, sources familiar with the plans told CBS News.

Harris has yet to announce her vice presidential pick. When asked Tuesday whether she had made a decision yet, she said "not yet."

A top tier of contenders has emerged , CBS News has learned, with a pick expected to be made by Monday. The top tier includes Sen. Mark Kelly of Arizona, Gov. Josh Shapiro of Pennsylvania, Gov. Tim Walz of Minnesota, Gov. Andy Beshear of Kentucky and Transportation Secretary Pete Buttigieg.

About 10 hopefuls remain overall, and Harris will begin conducting formal interviews with the top contenders this week.

Before President Biden ended his reelection campaign and handed the reins to Harris, CBS News rated six of the seven battleground states as toss-ups and one as leaning Republican. Arizona, Georgia, Michigan, Nevada, Pennsylvania and Wisconsin are considered more competitive, while North Carolina is rated as leaning Republican.

Harris has made about three dozen visits to battleground states so far this year. Reuters was first to report Harris' plans to travel with her running mate.

Weijia Jiang contributed reporting.