The European Parliament has neither serious power nor a mandate. Most voters don't bother to show up. It's a circus act, not a congress of people's representatives.
In fact, it's very existence doesn't have a mandate. We never agreed to surrender our national sovereignty to a European government.
When the people in my country where asked in the only major referendum ever held in our history, our answer was a loud and clear "no". The EU has zero democratic legitimacy.
http://en.wikipedia.org/wiki/European_Union