From the Guardian:

Los Angeles city council will hear a proposal on Tuesday to exempt union members from a $15 an hour minimum wage that the unions themselves have spent years fighting for.

The proposal for the exemption was first introduced last year, after the Los Angeles city council passed a bill that would see the citys minimum wage increase to $15 by 2020. After drawing criticism last year, the proposed amendment was put on hold but is now up for consideration once again.