OP, to give you some idea of COA. S24 is currently attending UCD in state paying $42K per year. He also got accepted to Oregon State with WUE (COA $45K/yr) and uDub with $4.5K/year merit (COA $60K/yr).
In case you need to take out student loan, you can only borrow $5.5K first year without your parent’s cosign. Political Science degree may not lead to high salary career worth $100K debt. Good Luck.