When Rep. Tina Liebling began knocking on doors during her first race for the Legislature in 2002, some Rochester voters told her they were — "shhh" — Democrats.
"They would say, 'I'm a DFLer too but don't tell anyone,' " said Liebling, who in 2004 became the first Democrat in the era of partisan legislative elections to win a seat from Rochester.
Now, the DFL is making an aggressive play for votes in fast-growing, rapidly diversifying Rochester — county seat of Olmsted County — which anchors southern Minnesota and is home to Mayo Clinic, the state's largest private employer.
But there's another side of the story. In northeastern Minnesota, a union and DFL stronghold going back nearly a century, Democrats' firm grip is slipping. An aging population there is comfortable with the cultural conservatism and aggressive trade posture of President Donald Trump — especially when it comes to helping the local steel industry.
There's also a wariness of a Democratic Party whose center of gravity is being pulled ideologically to the left and geographically south toward the more urban sensibilities of the Twin Cities and other growing parts of the state, like Rochester.
"Elizabeth Warren comes to town and right away makes an anti-mining statement," said state Sen. Tom Bakk, DFL-Cook, referring to the presidential candidate's recent statement opposing copper-nickel mining in Superior National Forest. "When those things are critical to the health of your community, and you see high-ranking officials against them, it makes it hard to support the party if that's the perception."
The contrast between north and south neatly reflects the Democrats' identity crisis across the country. People of color, single women and suburbanites who detest Trump make up the party's emerging coalition, but they cannot win without at least some support from working-class whites who in another era formed the Democratic base.
Ruy Teixeira, a Democratic pollster who predicted the party's path in the 2002 book, "The Emerging Democratic Majority," said Democrats would be foolish to follow one path at the expense of the other.