Ok lets make this even easier. Here's a list of options, feel free to pick the ones that the government fixed with basically infinite money, several generations of time and the biggest government america ever had..
Ill even throw in the liberal talking points for free!
Poverty
Drug epidemic
Obesity
Alcoholism
Unemployment
Education
Affordable housing
Homelessness
Infrastructure
National debt
Mental health
The war machine
Wallstreet
Wealth disparity
big pharma
the 1%
energy independence
immigration
affordable healthcare
abortion
race relations
space travel
cost of living
animal welfare
slave labor for your iphone
regenerative farming
clean water access
gangs
prison population
broken homes
underfunded food banks