Harris raises $200m and gets 170,000 volunteers in first campaign week

Campaign says it saw unprecedented grassroots support' as about 66% of total fundraising came from first-time donors

Kamala Harris raised $200m in the week since she was endorsed by Joe Biden, her team said, as the vice-president appears to be drawing increased enthusiasm to her campaign.

Harris for President said about 66% of the total came from first-time donors, as the campaign said it had seen unprecedented grassroots support".