Which is the least liberal Democratic U.S. state?

[Vice President Christian Man]

Maine for now but there's a chance that Oregon or New Mexico could take that title within the next few election cycles. Oregon seems the most likely in the short term as the Dems in that state are pushing the state to the ground, but they benefit from a GOP that is prone to infighting between the Rockefeller and Ron Paul wings. Drazen could do well as she's somewhere in the middle, but it'll depend on turnout in Multnomah (Portland) and Washington counties. New Mexico is more likely than Oregon, but it'll depend on whether or not the Dem's will be able to win back Latino's, as they are souring on Biden.

Rhode Island is an honorable mention and seems to be shifting due to the state's historic blue dog population either dying out or changing parties. At the same time it seems to be shifting in a similar manner to Maine although for different reasons and while it's more Dem than Maine,  it's unlikely to become the least.