Sens. Fischer, Sasse unconcerned about outrage to their attempt to sabotage nuclear agreement with Iran

The menacing letter they signed, almost certainly a violation of the Logan Act, was written by Sen. Tom Cotton, and threatened the integrity of nearly 4,000 executive agreements signed since the begining of the Carter administration alone.
     It falsely attempted to persuade the government of Iran that the United States is not bound by executive agreements and implied that President Obama's successor could revoke any agreement signed by the United States with Iran.
     Secretary of State Kerry said their recklessness undermined U.S. foreign policy, was legally incorrect, and "ignored more than two centuries of precedent in the conduct of American foreign policy."
     Iran's foreign minister, a professor of international law with advanced degrees from three U.S. universities, said this:

     Sen. Deb Fischer dismissed criticism of her action as "partisan noise."
     Sen. Ben Sasse adopted a mien of incredulity, passing off his attempt at diplomatic meddling as merely "a letter that says we have a Constitution." He then went further, telling the World-Herald:

     It's breathtaking to me that anybody can think a letter that says we have a Constitution is surprising."
     Pressed as to his reason for signing the letter, Sasse said that shouldn't be the issue...