It's popcorn time.

Barely 24 hours after Trump launched his first Hillary attack ad in which he showed a laughing Putin respond to a barking Hillary, and shortly after Hillary's SuperPAC responded in kind with an ad of its own in which it used a Trump quote to mock him, the gloves are officially off, and now that both presidential candidates - both convinced they will face off against each other - are beyond the foreplay stage, the gloves have come off and the direct attacks are escalating rapidly.

So rapidly, in fact, that one may say Trump is risking a potential lawsuit with the following accusation (which, however, should not be too difficult to prove should one of Hillary's SuperPACs sue him for libel).

This is what Trump tweeted moments ago.

Hillary Clinton has been involved in corruption for most of her professional life! — Donald J. Trump (@realDonaldTrump) March 18, 2016

This is more than your typical political ad hominem - this is a material allegation with legal implications that goes to the core of Hillary's biggest weakness, her trustworthiness or complete lack thereof, and Trump's charges will only escalate from here on out, hopefully with actual examples. We look forward to Hillary's response.

One thing is certain: for the next six months, America will be entertained.