CHICAGO — Local Democratic leaders from coast to coast have largely been left to fend for themselves in combating Moms for Liberty, as the far-right group continues its book-banning march into school districts small and large alike nationwide. As Raw Story first reported last summer, some powerful Democratic leaders in Washington were — and, as we found out covering this year’s Democratic National Convention, continue to be — ignorant of the group that’s been labeled an “extremist” organization by the Southern Poverty Law Center Center. “The group Mom’s for Liberty — how much are they on your …