on the site of the Metrodome, pending approval by the state legislature and the Minneapolis city council. In May 2012, the proposal to build the stadium on the Metrodome site was passed by the Minnesota Legislature and soon afterwards signed into law by Dayton; On May 25, the proposal was officially finalized after receiving the approval of the Minneapolis City Council. In 2012, Dayton commemorated the 150th anniversary of the Dakota War of 1862 with a call for reconciliation, and repudiation of former governor Alexander Ramsey's position. Flags were flown at half mast for a "Day of Remembrance and Reconciliation in Minnesota." In the legislative session that ended in May 2013, Dayton pushed for and won a $2.1 billion tax increase, mostly on the wealthy and cigarettes. He also signed a bill legalizing gay marriage in Minnesota, created free, statewide, all-day kindergarten and financed expansions of the Mayo Clinic, 3M and Mall of America. In the spring 2014 session, Dayton came under fire from supporters and foes alike for opposing the legalization of medical marijuana, which polls showed 65% of Minnesotans support. One supporter, the mother of a child with severe epilepsy, alleged Dayton told her in a meeting that he would not legalize the drug but she could buy the drug illegally instead. Dayton denied saying that. On April 2, Marijuana Policy Project began airing an ad across the state attacking Dayton's opposition to medical marijuana legalization, featuring a St. Paul mother and her child whose severe seizures could be cured by medical marijuana. On December 6, 2017, Politico reported that Dayton was expected to appoint Lieutenant Governor Tina Smith to Al Franken's Senate seat if Franken decided to resign amid multiple sexual misconduct allegations against him. Franken resigned on January 2, 2018, and Dayton then appointed Smith to the U.S. Senate seat. Political positions As of 2010, Dayton received 100% ratings from the AFL–CIO, National Association for the Advancement of Colored People, National Abortion and Reproductive Rights Action League, and the liberal group Americans for Democratic Action. Dayton received a 79% rating from the League of Conservation Voters for his support of green energy as of 2010. In 2005, Dayton scored a 9% rating from the Small Business & Entrepreneurship Council. Healthcare Dayton supports health-care coverage for all Americans, with increased state and federal spending on health care. Dayton supports a progressive tax to decrease state and federal