Can my brother claim my daughter as a dependent?

My daughter and I lived with my grandmother and the only source of income I had for most of the year was $411 in food stamps each month. I got $100 a month in child support but that of course is not enough to make ends meet- so my brother helped me out even though he wasn't living with us as he had a well paying job and pretty much provided her with everything she needed, basically supporting her financially until I was able to get a job in November. So my question is, can he claim my daughter/his niece?