Ouch! After throwing some subtle shade at Donald Trump [1] on Twitter, Hillary Clinton went all in by releasing a new ad hitting the likely GOP candidate.

The video is short but powerful — it features clips from Republican members like Ted Cruz, Mitt Romney, Jeb Bush, and Marco Rubio bashing Trump in an attempt to show how he's tearing the Republican party apart despite his claims that he's a unifier.

"President Trump" is a dangerous proposition.

Mitt Romney, Ted Cruz, and Marco Rubio agree.https://t.co/fUkISvgaXC [2]

— Hillary Clinton (@HillaryClinton) May 4, 2016 [3]

Now that you've watched the ad, check out more reactions from Twitter [4] about Trump's impending GOP nomination.