6/5/2018 AOC for Congress - receives its largest single contribution from Justice Democrats - $5,000
8/10/2-18 Justice Democrats - receives its largest single contribution from AOC for Congress - $21,714'''
The FEC site is excellent for digs. You see who gave the money and who got the money. Sortable in a variety of ways.
https://www.fec.gov/data/receipts/?two_year_transaction_period=2018&data_type=processed&committee_id=C00630665&min_date=01%2F01%2F2017&max_date=12%2F31%2F2018
https://www.fec.gov/data/receipts/?two_year_transaction_period=2018&data_type=processed&committee_id=C00639591&min_date=01%2F01%2F2017&max_date=12%2F31%2F2018