Following Democrat Barack Obama’s announcement that he had chosen Joe Biden as his running mate, Republican candidate John McCain released an ad attacking Obama for not choosing former presidential candidate Hillary Clinton (video below). The ad uses Sen. Clinton’s own words to attack Sen. Obama. McCain is attempting to attract former Clinton supporters unhappy with the outcome of the Democratic primaries. Many Clinton supporters are worried that Obama lacks the experience necessary to be president, even holding an opposition event in Denver to unite McCain and Clinton supporters against Obama.

Hillary Clinton spoke last night at the Democratic National Convention (video below). She addressed the crowd calling for party unity behind Democrat Barack Obama saying, “Whether you voted for me, or voted for Barack, the time is now to unite as a single party with a single purpose.”

Gallup is reporting that Clinton has a high approval rating among Democrats at 80 percent. “While some Clinton supporters have yet to fall in line and support Obama for president, for the most part they have a positive opinion of Obama (as well as a largely negative view of McCain). So it is still not out of the question that they will come home by Election Day. But it is important to note that unifying the party is not a challenge unique to the Democratic Party, as many Republican supporters who are not enthusiastic about McCain have yet to return to the GOP fold.”