Erin's endorsements include:
- Elizabeth Ayala
- Center for Community Action and Environmental Justice
- Council member Jacque Casillas (Corona)
- Mayor Pro Tem Denise Davis (Redlands)
- Equality California
- Nancy Hart Former Riverside City Council Member
- Council member Christy Holstege (Palm Springs)
- IE United
- International Brotherhood of Electrical Workers (Local 440)
- Council member Lisa Middleton (Palm Springs)
- Erika Paz
- Penny Newman Founder of the Center for Community Action and Environmental Justice
- Maribel Nunez
- SEIU 721 (city and county employees)
- Francisco Sola
- Truman Club
- United Steelworkers Local 7600
- Victory Fund
- Vote Mama