The NE actually trended Republican in 1932:
Massachusetts had the lowest swing of any state.
Its kind of similar to the sunbelt suburbs holding up in 2006/2008 while the GOP collapsed everywhere else.
The base region, especially one based on a demographic turf war, doesn't move much, until the challenged demographic gets swamped by the new one.
An unrelated question, but what accounts for the Republican swing in Louisiana, Mississippi and South Carolina between 1928-32? They particularly stand out against the hard Roosevelt swings in the other Southerner States.
