TWO HARBORS, Minn. — When Melissa Hortman led Minnesota’s House DFL caucus, she kept a file of candidates ranked by how many doors they’d knocked over the last week. “And I like Aaron Schweiger quite a bit,” he said of the DFL candidate for House District 3B. With an evenly split House going into this fall’s elections, DFL leaders see these northeastern Minnesota races as a chance to seize control. How can Kania succeed where the last two DFL candidates couldn’t? He also ran twice for the state House as an independent, faring about as well as Republican candidates back when DFL wins were all but a given in northeastern Minnesota.