Simple. Politicians who actually care for the people and work for them. That means all people, which excludes people like Santorum who only care about white, male Christians. It also excludes probably 90% of Congress who care more about their corporate donors than they do their constituents. The Democrat/Republican divide is supposed to be about HOW to help people, not WHO to help like it has become.
Repeal Citizen's United, public financed elections, eliminate insider trading, eliminate lobbyists, simple agenda plain language legislation, make changes to encourage third parties, national voting holiday, stop and reverse the grotesque GOP disenfranchisement efforts, bipartisan non-political districting, etc.
A populist progressive government would rebuild the middle class and create jobs by abandoning our obsolete oil economy and infrastructure and build cities of future sustainable technologies.