No, not from the Onion. This includes Megyn Kelly, btw. Pics are on the hellsite. They're actually wearing garbage bags.

Via Ron Filipkowski:

Dark Brandon got #Trump supporters to walk around wearing garbage bags now.

2/ From the hellsite:

@megynkelly
·
1h
Happy Halloween Garbage People!

3/ From the hellsite:
@GottaLaff I now wonder whether one Tom Cox is among these.