Secretary of State Mike Pompeo Michael (Mike) Richard PompeoPutin nominated for Nobel Peace Prize The Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Pompeo accused of stumping for Trump ahead of election MORE on Wednesday said Iranian President Hassan Rouhani's comments comparing President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE's behavior to that of a Nazi were outrageous.

"It is outrageous for him to say such things, for a Holocaust-denying country that is threatening Israel to compare the United States or its leader to Nazis is among the most outrageous things I have heard," Pompeo told CBS "This Morning."

"And I will tell you, in diplomacy you hear a lot of them," Pompeo said, repeating, "The most outrageous things I have ever heard."

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Rouhani in a speech at the United Nations (U.N.) on Wednesday said Trump has tendencies "resembling a Nazi disposition," criticizing the U.S. for sanctions on Iran which are set to take effect in November.

Trump ripped into Iran in his own speech to the U.N., saying his administration will wage a "campaign of economic pressure" on Iran to stop it from advancing its "bloody agenda."

Trump also pressed other countries to join the U.S. in bringing economic sanctions to bear on Iran.

The European Union (EU) has resisted imposing sanctions, warning European firms not to alter their behavior under threat of sanctions and providing aid to Iran to offset American sanctions.

Along with the EU, Russia and China have agreed to set up a back channel to try to bolster Iran's economy and keep it in the 2015 Iran Nuclear Deal.

Trump pulled the U.S. from the pact, which was crafted under former President Obama, in May.

Pompeo said Wednesday, "to continue to create mechanisms to fund the world's largest state sponsor of terror is disastrous policy and I hope they will reconsider it."

The secretary of State added that European firms are "voting with their checkbooks" despite the EU's threats to abandon Iran.

"These sanctions will be effective, they are effective, and come Nov. 4 they will be even more effective," Pompeo said.