Harris campaign locks in delegates and Democrat state chair support - sources

FILE PHOTO: U.S. Vice President Kamala Harris looks on as she visits the St. Paul Health Center, a clinic that performs abortions, in St. Paul, Minnesota, U.S., March 14, 2024. REUTERS/Nicole Neri/File Photo

WASHINGTON (Reuters) - U.S. Vice President Kamala Harris's campaign officials and allies made hundreds of phone calls on Sunday, locking in delegates' support for her presidential nomination ahead of the Democratic National Convention in August while seeking to block any would-be challengers, multiple sources said.

At the same time, Democratic state party chairs held a Sunday afternoon call to discuss backing Harris as the party's nominee. Several participants said Harris has the chairs' full support.