Bernie Sanders' campaign is about to hold a press conference at campaign headquarters in Washington DC. You can watch it here.
As this gets underway, here's the latest: The DNC chair is defending the decision to suspend the campaign's access to the party's voter data base; and the AP, citing unnamed sources, is reporting that as many as four Sanders aides "accessed proprietary voter data compiled by the campaign of rival Hillary Clinton."
Ed. note: Post updated to reflect that the campaign, not Sanders himself, is holding the presser.