Republican presidential candidates are in Iowa for the final TV debate before the state's keenly anticipated nominating contest next month.
With seven candidates remaining, former House Speaker Newt Gingrich is surging in many opinion polls in Iowa.
But he is under attack from close rival, former Massachusetts Governor Mitt Romney.
The eventual Republican nominee will challenge Democratic President Barack Obama in next November's elections.
Offshore Oil drilling is a major issue in our political debate especially in this 2008 Presidential race with John McCain pushing for the lift of the ban. Am...