Five Best Ideas of the Day: July 29

1. As voter turnout falls, primary elections can be hijacked by small groups with narrow agendas. Primaries often fail to attract much media attention, depressing voter turnout in the future. We can break this cycle with a National Primary Election Day.

By Elaine Kamarck at the Brookings Institution Center for Effective Public Management

2. To help defeat ISIS, the Muslim world must enact new regulations to stop the flow of money.

By Carol E. B. Choksy and Jamsheed K. Choksy at Yale Global

3. Tech startups are finally creating blue-collar jobs.

By Sam Rosen in Re/Code

4. No hope: The Defense Intelligence Agency chief fears there will be no Mideast peace in his lifetime.

By Yochi Dreazen in Foreign Policy

5. To achieve real social change, make your goals public and invite collaboration — with accountability.

By Jigar Shah in LinkedIn

The Aspen Institute is an educational and policy studies organization based in Washington, D.C.