Clinton Calls on Trump to Release Tax Returns in New TV Ad

— -- The Clinton campaign is taking its call for Donald Trump to release his tax returns to the next level.

Today, the Democratic presidential nominee has unveiled a new television ad accusing her opponent of flip-flopping on the issue.

The 30-second spot, titled "Absolutely," opens with old footage of Trump saying if he ran for office he would "absolutely" release his tax returns -- something he has now yet to do. He and his campaign insisted that they cannot do so because he is under audit.

It then cuts to clips of Republicans, including former Republican presidential nominee Mitt Romney, suggesting that perhaps Trump has not released his tax returns because he is either not as rich as he says he is or that he's "hiding" something about his finances.

Clinton and her Vice Presidential running mate, Tim Kaine, released their taxes last week.

The new ad, according to the campaign, will air nationally on cable channels as part of a preexisting ad buy. It's release comes the same week the Trump campaign announced that it, too, will begin airing television ads.