I took the aerator off, and there was a small amount of debris. Cleaned it and re-installed, but there was little change. I couldn't waste anymore time on it, so I just bought a new faucet and installed that one. That one works fine.
I did not put the broken one in the new box and try to return it. I'll hold on to it for now, till I either decide to try to fix it or get sick of it taking up space and just pitch it.