Alice Walton, one of the Wal-Mart fortune heirs, is an early backer of Hillary Clinton's "Ready for Hillary" super-PAC.

Source: Brookings Institute

Mutli-media master Donald Trump routinely comments on numerous political issues, and has succeeded in amassing a large following of conservatives.

Source: Brookings Institute

Marc Andreessen backed GOP presidential candidate Romney in 2012. He's interested in the future of journalism — and in particular, the swift transition from traditional media to digital.

Source: Brookings Institute

Peterson argues for the reduction of government debt, and with his foundation has funded organizations such as Fix the Debt and the Committee for a Responsible Federal Budget.

Source: Brookings Institute

Paul Singer — a conservative Republic — has been a support of same-sex marriage and has a political action committee American Unity that contributed $2 million in support to GOP legislators who also are in support of same-sex marriage.

Source: Brookings Institute

Until recently, Art Pope was North Carolina's state budget director, and has been influential in the resurgence of the GOP in the state.

Source: Brookings Institute

14. The Omidyars criticized U.S. surveillance, and their foundation works on government transparency, property rights, and economic development.

Source: Brookings Institute

Jeff Bezos recently purchases the Washington Post, and have supported $2.5 million to the Washington state referendum in support of same-sex marriage.

Source: Brookings Institute

Zuckerberg works on immigration reform with the FWD.us organization, and has pushed for school reform in Newark, New Jersey.

Source: Brookings Institute

Peter Thiel contributed $2.6 million to the super-PAC for Ron Paul in 2012, and he recently expressed support for increased minimum wage.

Source: Brookings Institute

Buffett has been a strong Obama supporter, and advocates higher taxes on wealthy individuals.

Source: Brookings Institute

Pritzker is an Obama supporter and served as U.S. Secretary of Commerce in his administration.

Source: Brookings Institute

The Arnolds have contributed millions to state law makers in order to shift costs to employees and reduce pension benefits.

Source: Brookings Institute

The Bill & Melinda Gates Foundation has been extremely influential in education reform, and contributed $100,000 to support same-sex marriage in a Washington state referendum.

Source: Brookings Institute

Murdoch owns both the Wall Street Journal and Fox News — two major news organizations. Plus, he works with Bloomberg on immigration reform.

Source: Brookings Institute

Soros gave $1 million to Obama in 2012, and signed up as the co-finance chair of the "Ready for Hillary" super PAC.

Source: Brookings Institute

Adelson spent a whopping $93 million "seeking to defeat President Barack Obama in 2012", and promised to spend two times that much next election.

Source: Brookings Institute

Steyer is interested in climate change and works extensively to raise public awareness.

Source: Brookings Institute

Bloomberg is donating $50 million against the NRA with his super-PAC Independence USA. He also has the nonprofit organizations Mayors Against Illegal Guns, Everytown for Gun Safety, and Partnership for a New American Economy.

Source: Brookings Institute

The Koch brothers have contributed $30 million in "campaign ads targeting vulnerable Senate Democrats in a number of states" and that number "is expected to rise to $290 million by Election Day." Plus, they are running ads against Obama's health care.

Source: Brookings Institute

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