What happens if you have no insurance and are at fault in an accident?

Obviously, you can get a ticket. You also can be sued by the victim and the victim's insurance company for damages. They will look at your assets and see what can be liquidated to pay off the judgment. This could bankrupt you, depending on your state's rules for what assets you can protect from liquidation. The victim will have an attorney who will get paid at least a third of what is collected and has a strong motivation to get every last penny they can from you.

Going without liability insurance is a very, very, very bad idea, not to mention it is against the law in 49 states.