
When Dick Cheney was chief executive of Halliburton in the 1990s, he urged Congress to ease sanctions against Iran and enter into diplomatic discussions with the country’s leaders so the oil-field services company could legally do business there.
"Let me make a generalized statement about a trend I see in the U.S. Congress that I find disturbing, that applies not only with respect to the Iranian situation but a number of others as well," Cheney said at the time. "I think we Americans sometimes make mistakes...There seems to be an assumption that somehow we know what's best for everybody else and that we are going to use our economic clout to get everybody else to live the way we would like."
March 1995, Clinton signed an executive order that prohibited "new investments [in Iran] by U.S. persons, including commitment of funds or other assets."
restricts U.S. companies from performing services
."

Cheney was highly critical of the Clinton administration’s policy toward Iran.