Americans are voting in midterm Congressional elections which may see a switch in the balance of power in Washington. With just over a third of Senate Seats at stake, the Republican Party is hoping to win the six extra seats it needs to regain control of that body and therefore both Houses of Congress.______________________________________. All the seats in the House of Representatives are being contested. BBC News. 美国正在进行国会中期选举,这将导致华盛顿的权利平衡发生改变.参议院超过三分之一的席位悬而未决,共和党希望赢得六个额外席位以重新控制参议院甚至整个国会.________________________________.众议院所有席位都将进行竞选.BBC新闻.
but the BBC's north American editor says many Americans are feeling disaffected with their politicans including Black Obama, that could affect turn out.