If there was any confusion whether Iran thought it had gotten the best of John Kerry and the Obama administration as a result of the non-deal April 2 "framework" announcement for some future possible deal, it can be swept away following a Reuters report that Iran will only sign a final nuclear accord with six world powers if all sanctions imposed over its disputed atomic work are lifted on the same day, President Hassan Rouhani said in a televised speech on Thursday.

In other words, Iran is now dictating conditions to Obama, something it would not consider doing if it thought it did not had the leverage, or if it actually cared about how said negotiations ultimately conclude.

From Reuters: 

"We will not sign any deal unless all sanctions are lifted on the same day ... We want a win-win deal for all parties involved in the nuclear talks," Rouhani said. 

Since the preliminary agreement was reached, Iran and the United States seem to have different interpretations over some issues, including the pace and extent of sanctions removal.