In one of the emails, dated May 21, Mark Paustenbach, a committee communications official, wrote to a colleague about the possibility of urging reporters to write that Mr. Sanders’s campaign was “a mess” after a glitch on the committee’s servers gave it access to Clinton voter data.
“Wondering if there’s a good Bernie narrative for a story, which is that Bernie never ever had his act together, that his campaign was a mess,” Mr. Paustenbach wrote to Luis Miranda, the communications director for the committee.
In another email exchange, Mr. Miranda asked Ms. Wasserman Schultz whether they should call CNN to complain about a segment the network aired in which Mr. Sanders said he would oust the chairwoman if he were elected.