Brian Hook said on Friday that Washington plans to continue the harsh economic sanctions policy against the Islamic Republic in an attempt to bring it to the negotiating table on issues such as the nuclear program.
"We refuse to play by that rule book. When you play under house rules, the house always wins," Hook said. "So we are going to continue with our policy."
He said the US would like to see Iran negotiate a new nuclear agreement.
Washington’s so-called maximum pressure campaign against Tehran officially started when Republican President Donald Trump unilaterally pulled his country out of the 2015 Iran nuclear deal officially known as the Joint Comprehensive Plan of Action (JCPOA) in May 2018.
Trump pulled his country out of the Iran nuclear deal and re-imposed harsh sanctions against the Islamic Republic in order to make Tehran capitulate to Washington’s wishes.
Iran, however, has not given in to US pressure and has announced the start of unlimited nuclear research and development work.