So 47 US Senators wrote a letter to Iran:
Republican lawmakers warned the leaders of Iran on Monday that any nuclear deal they cut with President Barack Obama could expire the day he leaves office. The White House denounced the GOP’s latest effort to undercut the international negotiations as a “rush to war.” Vice President Biden, president of the Senate, responded to the open letter with a statement declaring it “beneath the dignity of an institution I revere.”
Monday’s open letter from 47 GOP senators marked an unusually public and aggressive attempt to undermine Obama and five world powers as negotiators try to strike an initial deal by the end of March to limit Iran’s nuclear programs.
The GOP is trying to blow up the possibility of any peaceful settlement of the Iranians' nuclear ambitions. Those options off the table, we would then be left with only military responses, which Republicans always prefer.
Short-sighted? Yes. Stupid? Profoundly. Risky and dangerous? Absolutely. However, despite the overheated claims circulating on the left, it is not treason.
Unlike every other crime, treason is actually defined in the U.S. Constitution:
Section 3. Treason against the United States shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court.
The Congress shall have Power to declare the Punishment of Treason, but no Attainder of Treason shall work Corruption of Blood, or Forfeiture except during the Life of the Person attainted.
While attempts have been made by the Congress to expand the definition of treason, they have tended to be rather regrettable, such as the Alien & Sedition Acts, the Espionage Act, and the unfortunate career of Joe McCarthy.
I understand that a lot of people are pissed off about what Tom Cotton and his merry band of idiots have done. However, it is disappointing and disturbing to see accusations of treason being tossed around so casually by Democrats and liberals. Disagreeing with the President is not treason. Republicans spent the majority of 2001-2008 shouting "Treason!" at anyone who didn't line up quickly enough and clap for everything George W. Bush did, and what I would hope we had all learned from that experience is that doing that sort of thing is a really shitty idea.
Update: And no, the Logan Act is not the answer.