New light fixture tripping breaker
I have been trying to replace a three bulb dome light fixture in my kitchen and it keeps shorting when I turn it on. The house wires are a little old but not frayed. There are no apparent bare wires. Even I as a novice can attach black to black and white to white, put on wire nuts, and push them back into the box (a plastic one not metal despite it's apparent age). The ground wires don't seem to be touching anything they are not supposed to.
I've taken it down and started from the beginning three times now. I'm baffled.
Any thoughts?