In the Leo phase (2003-16) the USA’s natal chart Aquarius moon is the 7th sign from Leo. Hence the social life. Before this it was the eighth sign. Eighth sign of the zodiac is Scorpio, a water sign associated with debt, inheritance, etc. Mid-way through the Leo phase the previous phase, Cancer Phase, completely ends its influence. Hence the easy money ended in 2008 leading to the financial crisis. I do believe this is the right way of looking at it. For every country, look at its moon, not the sun.
However, another way of looking at it is that Leo is the second sign from Cancer. The second sign of the zodiac is Taurus, the sign associated with money, banking and possessions, including real estate and other assets. Hence at the peak in 2007 the financial crisis happened. The only planet in aspect to Taurus is Aquarius moon. Moon is the planet of emotions and mass public reactions, hence it was a major news event and emotional scar for Americans.