system
A chat on subreddit /r/PoliticalCompassMemes
human
He is the one that started the initiative to increase subprime lending with federally guaranteed loans through Fannie Mae and Freddy Mac. Subprime is a nice way of saying people that are at a higher risk of defaulting on their loans, which they did in droves, hence the housing market crash that lead to the Great Recession. 

People blame banks for it but what they were doing was a result of bad government policy.
gpt
You can loan money to people who are likely to not being able to pay it. The issue is when you do so, then package a bunch of those people together and say they're a safe investment. That's the lie that ends up with too much money that was supposed to be safe in risky investments.