The American Republic will endure, until politicians realize they can bribe the people with their own money.
Bribe the people indeed! In my home state of Tamil Nadu in India, the DMK party won the recent state elections by promising subsidized rice, a free television for every family and a variety of such pork that would make a conservative shudder. No one ever asked why the party was unwilling instead to commit to provide a robust economy that would alleviate the need for subsidized rice or free TVs.
Here in the US, as our governments rack up record deficits from being unable to cut out our spending sprees, we would do well to remember those words.