Omar Navarro, a Republican candidate running to unseat Waters in the midterm elections, also voiced his thoughts on Twitter.

OXFORD The United States and its allies are facing another major policy challenge in Iraq. Airstrikes against the Islamic State might unseat the group s fighters in critical areas but, as things stand, troops will be needed to hold and govern liberated territory.

American politics, moreover, remains gridlocked over budgetary issues, and compromise will be even more difficult on the eve of the 2012 election, when Republicans hope that economic problems will help them unseat President Barack Obama. In these circumstances, many are predicting America s decline, especially relative to China.

That meeting produced a notable broadside against the United States, as each member declared its desire to unseat the dollar as the global reserve currency. A few months earlier, the four were moved to issue a joint communiqué ahead of the G 20 Summit in April noting their shared determination to change the rules of the global economic system.

The rival Tripoli s Revolutionists Council, meanwhile, has warned that it would unseat any incoming government should its demands for representation not be met. The NTC also faces pressure from Libya s Berbers, who comprise 10 of the population and have already taken to the streets to denounce the new political arrangements and to reject any system that does not accommodate theirculture andlanguage.