Well... when Al Gore won the presidential election and had his place taken by Bush with the help of media (the same fox news if i remember it right), nobody in the world questioned it nor thought about intervening on the usas defrauded elections.

So, any usas intervention on the (supposedly defrauded) Iran elections would be preposterous too. Obama has problems enough to take care in his own contry, and doesnt need to meddle on other countries problems too.