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FILE - In this Friday, June 26, 2015 file photo, Ann Sorrell, 78, left, and Marge Eide, 77, who have been together for 43 years, kiss after exchanging vows in Ann Arbor, Mich., following a ruling by the U.S. Supreme Court that struck down bans on same sex marriage nationwide. Opponents of marriage rights for gays and lesbians argued for years that the policy should be left to the states to decide. They argued that state lawmakers, not judges or Congress, were best positioned to decide whether to sanction such relationships in any given state. (AP Photo/Paul Sancya)
- Paul Sancya

FILE - In this Tuesday, Nov 8, 2016 file photo, Sam Nobbs votes at the Dundee Presbyterian Church in Omaha, Neb. In January 2018, Trump disbanded a commission he assembled last year to investigate voter fraud in the 2016 elections, something he asserts without evidence cost him the popular vote. (Megan Farmer/Omaha World-Herald via AP)
- Megan Farmer

FILE - In this Friday, March 17, 2017 file photo, Republican Gov. Larry Hogan, second from right, announces plans to support a ban on hydraulic fracturing for natural gas in Maryland during a news conference in Annapolis, Md., giving a boost to legislation to ban the practice. From left are Del. Robert Flanagan, R-Howard; Sen. Robert Zirkin, D-Baltimore County; Hogan and Sen. Bryan Simonaire, R-Anne Arundel. Some Republican and Democratic governors of coastal states, including Hogan, have spoken in opposition to Trump’s plan announced in January 2018, to allow oil drilling in the Arctic and off the Pacific and Atlantic coasts. (AP Photo/Brian Witte)
- Brian Witte

FILE - In this Aug. 29, 2016 file photo, Marilyn Smolenski uses a mock gun to demonstrate how to pull a handgun out of concealed carry clothing she designs at her home in Park Ridge, Ill. In December 2017, the GOP-controlled U.S. House of Representatives voted largely along party lines last month to pass the Concealed Carry Reciprocity Act, which would prevent states from enforcing their own handgun permit laws against out-of-state visitors. (AP Photo/Tae-Gyun Kim)
- Tae-Gyun Kim

FILE - In this Thursday, July 20, 2017 file photo, Connecticut Gov. Dannel P. Malloy walks with nine-year-old Hayley Chavarria before speaking at a press conference at Iglesia de Dios Pentecostal Church in New Haven where her mother Nury Chavarria, who was supposed to be deported Thursday to Guatemala, has taken sanctuary. Malloy, said the attempt to deport the housekeeper and mother of four shows President Donald Trump's administration is not being truthful when it says its immigration policies are focused on "the bad guys." The Trump administration has threatened to withhold funding from states and cities that offer sanctuary status to immigrants, arguing that localities must cooperate with federal efforts to identify and remove those in the country illegally. (Catherine Avalone/New Haven Register via AP)
- Catherine Avalone

FILE - In this Monday, Jan. 1, 2018 file photo, a customer purchases marijuana at the Harborside marijuana dispensary in Oakland, Calif., on the first day that recreational marijuana was sold legally in California. In January 2018, Attorney General Jeff Sessions rescinded a 2013 Obama Administration policy pledging that federal authorities would not crack down on marijuana operations in states where they were legal as long as the states maintained tight regulations. (AP Photo/Mathew Sumner)
- Mathew Sumner
AP Explains: Trump actions re-ignite states rights' debate
- By RYAN J. FOLEY and GEOFF MULVIHILL Associated Press
- Updated