A South Carolina aide for Tom Steyer’s 2020 presidential campaign stole valuable volunteer data collected by Kamala Harris’ campaign using an account from when he worked with the S.C. Democratic Party, according to multiple state and national party officials. The Steyer campaign said that it does not have possession of the data and that Democratic officials were only aware of the download, which they said was inadvertent, because they proactively notified them. Both the Democratic National Committee and S.C. Democratic Party denied that. The Democratic National Committee said they quickly caught the attempt on Friday by Steyer’s deputy S.C. state...