VIDEO: A new Hillary Clinton ad compares Donald Trump to famous bullies.
VIDEO: Donald Trump's new ad shows video of Hillary Clinton coughing and stumbling.
VIDEO: Donald Trump's latest attack ad takes Hillary Clinton's words and uses them against her.
VIDEO: An NBC News report found some confusing details in Donald Trump's new $10 million ad on the economy.
VIDEO: Hillary Clinton's new ad features Klan members who support Donald Trump for president.
VIDEO: The attack ad Hillary released on Mike Pence moments after he was announced as Trump's VP.
VIDEO: Hillary's new attack ad positions Trump's more controversial statements against children who could be watching.
VIDEO: A pro-Hillary super PAC, Priorities USA, has released an anti-Trump attack ad. Trump took to twitter to express his anger with the ad.
VIDEO: In Hillary Clinton's latest attack ad against presumptive GOP nominee Donald Trump, she uses the words of people in his own party.
VIDEO: This "Confessions of a Republican" attack ad on Barry Goldwater from 1964 perfectly captures the current identity crisis in the Republican party now that Donald Trump has all but clinched the GOP presidential nomination.
VIDEO: In his latest political attack ad, Ted Cruz employed a Hillary Clinton impersonator.
VIDEO: Donald Trump was asked on "Good Morning America" and "TODAY" if he had seen the attack ad by Our Principles PAC and he responded differently on each show, first saying he had seen it, and then saying he had not.
VIDEO: Anti-Trump voters say this 1964 political ad by Lyndon B. Johnson perfectly summarises Trump's campaign.
VIDEO: Ted Cruz must be a fan of "Office Space."
VIDEO: Republican Senator Ted Cruz's latest attack ad features a Donald Trump action figure and a trio of three young boys trashing the real estate mogul.
VIDEO: Donald Trump announced that he would not be attending the FOX Republican debate January 28 and then got into a verbal spat with a reporter.
VIDEO: In his latest campaign ad, Donald Trump has chosen a to attack Ted Cruz.
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