With victories in Florida, Ohio, Pennsylvania, Virginia and other battleground states, Obama built a commanding lead over his Republican rival, John McCain.

• 奥巴马在佛罗里达州、俄亥俄州、宾夕法尼亚州以及其它竞选州胜出，以压倒性的优势战胜其共和党对手约翰-麦凯恩。