gave retired or off-duty police officers the legal right to carry concealed guns in public schools. Health care Walker opposes the Affordable Care Act (ACA or "Obamacare") and has signed Wisconsin onto a lawsuit seeking to have the ACA rolled back (including provisions for preexisting conditions). He supported the Graham-Cassidy legislation to repeal the ACA; this repeal bill would have eliminated blanket protections for preexisting conditions. In 2018, Walker pledged to pass legislation to protect individuals with preexisting conditions in case the Affordable Care Act were repealed; according to PolitiFact, "he hasn't spelled out an alternative that would provide protections that Obamacare does." As Governor, he has blocked expansion of Medicaid in Wisconsin. Redistricting In Wisconsin, responsibility for redrawing legislative and congressional district lines rests with the legislature. The legislature is required to redraw legislative and congressional districts every 10 years based upon the results of the decennial federal census. The redistricting legislation after the 2010 Census was signed by Walker in August 2011 in a private ceremony to which no Democrats or news agencies were invited. As an outcome of legal action by Wisconsin Democrats, a panel of Federal judges found in 2016 that the Wisconsin Legislature's 2011 redrawing of State Assembly districts to favor Republicans was an unconstitutional partisan gerrymander. Walker has appeared on Fox News to defend the 2011 redistricting, but even that conservative-leaning forum has criticized his efforts. Immigration Walker has claimed that securing the American border with Mexico is "our first priority". After that, undocumented immigrants in the United States could "secure their citizenship" but would have to "get in the back of line", and wait like anyone else applying for citizenship. Walker says that he does not advocate deportation for all people in the country illegally, but he is not in favor of amnesty. In a 2015 appearance on Meet the Press, Walker said proposals to build a wall along the Canada–United States border was "a legitimate issue for us to look at." Walker has stated that he would work to "protect American workers" by aligning his position with Sen. Jeff Sessions (R-AL), who wrote in a Washington Post op-ed that legal immigration needs to be "slowed". Role of government Walker wrote in an editorial in The Washington Post that "Like most Americans, I think government is too big and too expansive, but the government that is necessary should workand work well." Same-sex marriage