Looking at the state of the country now, there are various economic reasons why naira is loosing it values in the exchange matter, and critically looking at the matter you are are right by saying political turmoil is one of the key reasons affecting it, because looking at the country we observed that any te there is a change in government, our currency always losses value, but with time, we hope that everything will become normal if the government work towards that, and also the rate of inflation in our country will reduce....
Shear your points also, so we can enlighten each other about our economy.