Aaron Rodgers' bro says the QB is a fraud who ignored his own mother during the California fires -- while she was getting ready to evacuate.
Yeah, it's getting nasty again.
Aaron's bro is Jordan Rodgers -- you know him from "The Bachelorette."
After Aaron went public with his $1 million donation to wildfire victims near his hometown in Northern California on Wednesday, Jordan called the NFL star out on social media ... saying the whole thing "feels like an act."
"PLEASE DONATE, SPREAD AWARENESS & SEND LOVE," Jordan wrote .