Maura Barrett, Jordan Jackson and Deepa Shivaram report:
A staff member for Democratic presidential candidate Tom Steyer used access he had previously been granted while working for the South Carolina Democratic Party to download data about rival Kamala Harris’ campaign, state party officials said Monday.
The South Carolina Post & Courier was the first to report the breach.
The staffer, Dwane Sims, resigned Monday after an internal investigation, according to statement from the Steyer campaign Monday night.
Read more on NBC.