GOP extends control of Congress By Sandra Sobieraj, The Associated Press Exultant Republicans took control of the Senate and strengthened their hold on the House, handing President Bush historic bragging rights and two years to push through an agenda starting with deeper tax cuts. Sweetening the prize, Republicans claimed a majority of the governors' races and left Democrats grumbling about a popular wartime president. President Bush talks with House Speaker Dennis Hastert, left, and Senate Minority Leader Trent Lott, right, while watching election returns. By Eric Draper, AP Bush made celebratory calls into the early morning hours Wednesday and already...