Obama violated the Logan Act?

HT from Hot Air here:

Amir Taheri accuses Barack Obama of interfering in the attempt to negotiate a status-of-forces agreement with Iraq while making his trip to Baghdad in July. In his New York Post column, Taheri quotes the Iraqi Foreign Minister, on the record, telling him that Obama tried to convince the Iraqis to end the negotiations and instead ask the UN for another one-year extension to the current mandate. That would have left US troops in current position for another year, but more importantly, would have provided the US a diplomatic setback that Obama could have exploited on the campaign trail: