“If anyone is going to challenge Vice President Kamala Harris for the Democratic presidential nomination, they have only until this weekend to do it,” Politico reports.

“Delegates to the Democratic National Convention rules committee approved the virtual roll call on Wednesday, moving ahead with a July 30 deadline for candidates seeking to collect delegate signatures to appear on the virtual roll call. The virtual roll call, which must be completed by Aug. 7 to comply with Ohio ballot access deadlines, could start as early as next Thursday.”