Circular Saw not working
#1

I have a basic Skil circular saw that is having a problem. When sawing a 2 x 4, the blade will stop rotating soon after digs into the wood. It was working fine the other day, but now I can't even cut a 2 x 4 cause the blade stops. Could it be I need a new blade? It's only a year old and hasn't been used much. Or is there something wrong with the motor?
Thanks.
Thanks.