Donor profile: William “Bill” Koch

By Amy Myers

Quick stats on the biggest financial backers of Election 2012

New documentary underscores Koch brothers' broad influence in policy and politics

By Sandy Johnson

New Bloomberg video underscores iWatch News findings about Koch influence in Washington

Koch buys online advertising to attack report on its lobbying influence

Oil firm takes out online ads attacking Center reporter’s project on lobbying

Koch's web of influence

By John Aloysius Farrell

The Koch Industries web of influence

Issa oversight committee staffs up with industry insiders

By Brooke Williams and Matt Pearce

As chairman of one of the most powerful committees in Congress, Republican Darrell Issa has built a team that includes staff members with cl