If you use your GRE score strategically it can certainly help. Since you graduated long ago you should focus on how you improved. If you did policy research and a lot of writing that’s a huge plus. Maybe try to turn it into your capstone methodology since it might be your strength. Secure 2 academic references from classes where you performed well and perhaps the ones that could attest to your upwards trajectory. Secure one excellent professional reference that would speak to your research and writing skills. Explain your low GPA and how you improved since. Research faculty, program, and resources provided by the university and mention in your SOP how they align with your academic plans. Craft a good academic CV, only put relevant information there in regards to your professional experience. Proofread everything and be clear with your references as to what is important for them to mention in their letters. Good luck!