Tehran, April 20, IRNA � Deputy Foreign Minister Abbas Araqchi said Monday that once a comprehensive deal a achieved about the nuclear dispute, the bills passed by Congress of a single party cannot work.

Araqchi, a senior member of the Iranian nuclear negotiating team, made the remarks speaking on the sidelines of a conference at a university in Tehran to review the outcome of Lausanne talks over Iran nuclear program.

'We negotiate with the US government within a multilateral framework,' Araqchi said, noting that bills passed by the Congress of a single party (the US Congress) cannot work.'

Iran will hold the US government accountable for the commitments it would undertake as per the accord and the US will have to honour its obligations, Araqchi said.

It is the US government that has to settle scores with the Congress, Araqchi added.

By IRNA