The Obama administration and Democrats are outraged over a letter from Senate Republicans to Iran about the pending nuclear deal.
"It’s surprising to me there are some Republican Senators who are seeking to establish a back channel with hardliners in Iran to undermine an agreement with Iran and the international community.
“All of this is much more likely to be successful and more enduring than the military option our Republican opponents seem to be advocating,” Earnest said.
U.S. Representative Adam Schiff (D-CA) said he was “appalled” by the GOP's letter to Iran.
“I think it's deeply irresponsible to have these GOP senators write to a foreign government in a way that's at odds with the President's policy is beyond disturbing. We are so far beyond politics ending at the water’s edge.
“But I think all of us, Democrats and Republicans, House members and Senators, ought to keep our powder dry until we see whether there's an agreement, and then there will be plenty of time for us to weigh in,” Schiff said.
"Republicans need to find a way to get over their animosity of President Obama.
"It's unprecedented for one political party to directly intervene in an international negotiations with a sole goal of embarrassing the president of the United States," Senate Minority Leader Harry Reid (D-NV) said.
U.S. Senator Dick Durbin (D-IL) called the letter “a cynical effort by Republican Senators to undermine sensitive international negotiations — it weakens America’s hand and highlights our political divisions to the rest of the world.”
“Understand that if these negotiations fail, a military response to Iran developing their nuclear capability becomes more likely,” Durbin said.
Durbin also added that the GOP “should think twice about whether their political stunt is worth the threat of another war in the Middle East.
"This bizarre, inappropriate letter is a desperate ploy to scuttle a comprehensive agreement and the chance for a peaceful resolution, which is in the best interests of the United States, Israel and the world,” Sen. Barbara Boxer (D-CA) said.