“In conversations on the sidelines of a DNC executive committee meeting and in telephone calls and texts in recent days, about a half-dozen members have discussed the possibility of a policy reversal to ensure that so-called superdelegates can vote on the first ballot at the party’s national convention,” Politico reported. “Such a move would increase the influence of DNC members, members of Congress and other top party officials, who now must wait until the second ballot to have their say if the convention is contested.” Politico noted that it’s an uphill battle for those who want the rule change, but...