Republican presidential candidate Sen. John McCain introduced his running mate, Alaska Gov. Sarah Palin, at an Ohio rally Friday, praising her "tenacity" and "skill" in tackling tough problems.

An emphasis on diversity may serve him better than a focus on his middle-class roots.

Sarah Palin is as dramatic a contrast as one can envision with Republican presidential candidate  John McCain. The differences between the presidential candidate and his running mate are so stark that it’s hard to assess which one is boldest: age, sex , political experience, or geographical remoteness.

Sen. Barack Obama of Illinois accepted the Democratic presidential nomination Thursday night, declaring that his Republican opponent is not up to the task of resolving America's economic and foreign policy problems.