Bernie Sanders -- the presidential candidate who was championing the issue of open primaries -- just endorsed his competitor, Hillary Clinton. The one person who had the power to advance our issue from within the party just stepped aside to support the quintessential Democratic establishment candidate's bid for the presidency. That means that our movement, and our petition to let ‪#AllVotersVote‬, is the last opportunity for establishing open presidential primaries this year. It is more important than ever that we continue what we're doing and secure as many signatures as possible in the coming days before the conventions begin. Over 30,000 Americans who are dissatisfied with the stale partisanship of our politics have stepped forward and joined our cause. Countless volunteers across the country have contributed their time and resources because they are fed up with a political system that doesn't represent the voters. With or without Bernie, we intend to keep moving forward.