Koch considers himself a social liberal, supporting women's right to choose, gay rights, same-sex marriage and stem-cell research. He opposes the war on drugs. Koch supports policies that promote individual liberty and free market principles, and supports reduced government spending. Koch supports a non-interventionist foreign policy; "Pursuing a very aggressive foreign policy," he says, "is an extremely expensive endeavor for the U.S. government. The cost of maintaining a huge military force abroad is gigantic. It's so big it puts a severe strain on the U.S. economy, creating economic hardships here at home." Koch opposed the Iraq War, saying that the war has "cost a lot of money and it's taken so many American lives", and "I question whether that was the right thing to do. In hindsight that looks like it was not a good policy". In an impromptu interview with the blog ThinkProgress, he was quoted as saying he would like the new Republican Congress to "cut the hell out of spending, balance the budget, reduce regulations, and support Business." He is against the Patient Protection and Affordable Care Act and the Dodd–Frank Wall Street Reform and Consumer Protection Act. He is skeptical about anthropogenic global warming. He has said a warmer planet would be good because "Earth will be able to support enormously more people because a far greater land area will be available to produce food".