>Yes, there is, largely to a very poorly representative electoral system. Lots of elections doesn't make a well-functioning democracy, that takes elections which produce governments that are effectively representative.
Can you explain in what sense American government is not representative?
People freely choosing to vote for people that you don't consider to be in their best interests does not make a government unrepresentative.
There are a few factors that impact representativeness - gerrymandering and the ineligibility of felons and illegal immigrants, for instance, but all-in-all that impact is pretty minor. In particular, of course, at a local and state level, those impacts are reduced along with the scale. There's an unwarranted hyper-focus on federal government because it's the most visible and affects the most citizens, but for most people's day to day lives, it is the least important level of government.
If Americans have a divisive, gridlocked federal government that produces results nobody likes, that's the natural consequence of a divisive, gridlocked populace that doesn't know what it wants (lower taxes! more social security! balance the budget!), not un-representative government.