drilling. He opposed the Clean Power Plan and supported Trump's rollback of it. In 2017, he called on Trump to withdraw the United States from the Paris Agreement. In 2014, Tillis denied that climate change was occurring. In 2015, he voted against an amendment acknowledging its existence and the contribution of human activity. In 2018, Tillis said he believed climate change is happening and that humans may contribute to it, but remained unclear about whether he agrees with the scientific consensus on climate change that it is human-caused. In his 2020 Senate campaign, InsideClimate News described Tillis as trying to "remake himself as a moderate proponent of market-based climate solutions" despite a "record as a fossil fuel advocate closely aligned with Trump". In November 2017, Tillis opposed Trump's nomination of Michael Dourson for an EPA role. In 2019, Tillis was one of 20 senators to sign a letter asking the EPA to regulate the amount of per- and polyfluoroalkyl substances in drinking water, after reports that they would not. Tillis holds a 9% lifetime score from the League of Conservation Voters. Foreign policy In 2017, Tillis was one of 21 senators to sign a letter condemning the genocide of the Rohingya Muslim minority in Myanmar. In 2020, he expressed support for the US military's assassination of Iranian major general Qasem Soleimani by drone strike at the Baghdad International Airport. Gun policy In the state House, Tillis supported an overhaul of gun laws allowing concealed weapons to be carried in restaurants and parks. He has an "A+" rating from the National Rifle Association (NRA), which spent $4.4 million during his 2014 Senate campaign, half in support of Tillis and half in opposition to Hagan. As of 2018, Tillis was the third-largest beneficiary of NRA funding in Congress. After the 2016 Orlando nightclub shooting, Tillis voted for Republican bills to increase funding for the federal background check system and delay gun sales for 72 hours for individuals on the terrorist watchlist, but against Democratic bills to ban individuals on the terrorist watchlist from purchasing a gun and require background checks at gun shows and during online sales. In 2022, Tillis was one of 15 Republican senators to support the Bipartisan Safer Communities Act, which involved funding for state red flag provisions and crisis intervention orders, funding for school safety resources, stronger background checks for buyers under age 21, and penalties for straw