The Ninth Circuit has concluded that a California conviction for perjury is categorically an aggravated felony. In so doing, the court deferred to the Board of Immigration Appeals’ definition of a perjury-related aggravated felony in Matter of Alvarado.
The full text of Yim v. Barr can be found here:
https://cdn.ca9.uscourts.gov/datastore/opinions/2020/08/25/17-70624.pdf