Those findings, however, should be taken with the following grains of salt:
"First, regular public transit ridership is meager even among the groups most likely to use it. It's not as if a majority of 'solid liberals' get to work every day by subway, while steadfast conservatives wholly disdain it. The difference between the two poles in using transit 'at least once a week' is just 17 percentage points."
"But this may tell us as much about where all these people live as how they really feel about transit. Liberals are more likely to be clustered in cities, where transit is most common."
"What the above data doesn't tell us is whether liberals and conservatives have different preferences for public transit when they live in the same place."