Anne Arundel County may run red during elections, but its school board has turned almost completely blue.

Just one Republican remains on the Board of Education; the other seven adult members are all registered Democrats. Even the student board member, who's too young to register and hasn't picked a party, said she supported President Barack Obama in 2008.

Against the rest of the county, which generally votes conservatively, that Democratic majority is a mismatch. Voters have chosen a Republican county executive and Republicans for four out of seven seats on the County Council, and in 2008 they voted for Republican...