First off, Tony and Hugh did not exactly have much going for them from the start. While Hillary was off getting a law degree and marrying Bill, her brothers bounced around to various odd jobs such as prison guard and repo man. Then their brother-in-law got elected president in 1992, and they had it made.
At first, Tony and Hugh did little things, like trying to get corporate donations for upcoming election parties, but Hillary had to tell them to knock it off. And then in 1999, they teamed up for a get rich quick scheme to import hazelnuts from the country of Georgia. It doesn't seem like the kind of thing that they could fuck up on an "international incident" scale, but like wacky sitcom brothers, they found a way.
They're just short of trying to save the local teen center with dance.
The problem was that the U.S. government needed to stay on good terms with Georgia's government, since they were helping out during the war in Kosovo. America was thus friendly with Georgian president Eduard Shevardnadze. But the guy in charge of the hazelnut company the Rodham brothers were dealing with was Aslan Abashidze, Shevardnadze's archenemy.