Attorney General Lori Swanson, DFL-endorsed state Rep. Erin Murphy and U.S. Rep. Tim Walz debated the issues live on MPR News — their final chance to engage with each other before the primary. Current DFL Gov. Mark Dayton is stepping down, leaving the office wide open. When the other side does it, it’s called negative campaigning. When your side does it, it's described as pointing out contrasts. Whichever term is used, the 2018 DFL primary for governor has been lacking in either. But Friday, it finally reached the point where the candidates are pointing out the flaws in their opponents.“Congressman Walz this year has missed 63 percent of his votes,” Swanson said. “One of the most important things a congressman does is show up to vote,” and then compared him to a McDonald’s worker who regularly misses shifts. MinnPost