The Ninth Circuit has determined that a man who protested the Chinese government's eminent domain policy, and who was, as a result, beaten and accused of being anti-government, was persecuted on account of his political opinion.
The full text of Song v. Sessions can be found here:
http://cdn.ca9.uscourts.gov/datastore/opinions/2017/12/18/14-71113.pdf
An amended opinion was subsequently filed and can be found here:
http://cdn.ca9.uscourts.gov/datastore/opinions/2018/02/15/14-71113.pdf