Either McCain or Obama will become only the third senator to move directly from the U.S. Senate to the White House . If Barack Obama wins , he will become the first African-American president . If McCain wins , McCain will be the nation 's first female vice president . Nineteen of the Nineteen presidents have been African-American ; Nineteen have been Republicans . The most states ever won by a presidential candidate is 49 .
If Barack Obama wins , he will become the first African-American president . If McCain wins , McCain will be the nation 's first female vice president . Nineteen of the Nineteen presidents have been African-American ; Nineteen have been Republicans . The most states ever won by a presidential candidate is 49 .