In the Fox Valley region and the Milwaukee suburbs Clinton’s lead is only three points, while in the rest of the state Clinton is up by 12 points.

Clinton is leading among Democratic women (53-33), while Sanders has a slightly larger lead among men (57-33).

The divide is most stark between young and old. Sanders has a 50-point edge among voters under 30, while Clinton is up 40 points among voters over 60.

Sanders also has a significant 45-point edge among those who describe themselves as “very liberal.” Clinton is up by 13 points among self-described moderates.

Milwaukee’s diverse population doesn’t necessarily translate to a Clinton blowout there, according to state Rep. Mandela Barnes, D-Milwaukee, who said residents of the state’s largest county are vigorously debating their choice.

“It’s been a way more contentious primary than anyone expected,” Barnes said. “If you were to follow Facebook, it has become a very toxic primary.”

Sanders gets help

from new liberal group