Photo: AP

Speaking to a group of liberal donors Monday, David Brock—the Clinton loyalist and political operative behind Media Matters—claimed to have opposition research on Donald Trump so damning that it will “knock Trump Tower down to the sub-basement.”

Brock, a former conservative-turned-Clinton supporter, has spent most of this election attacking Bernie Sanders, who he’s accused of “trying to live in the purity bubble” while smearing Clinton.

Still, just how hyperbolic Brock’s claims about his dirt on Trump are remain to be seen—he says his opposition research nonprofit American Bridge has been strategically sitting on the information, which includes a database of people screwed over by Trump, to avoid giving more moderate candidates a chance to clinch the GOP nomination.

Now with Trump and Ted Cruz barreling towards the nomination, Brock says American Bridge has individualized attacks planned for both.

Brock asserted that, if Trump does win the GOP nomination “a bare-knuckles campaign is necessary” to brand him as a greedy. misogynistic racist, and “a danger to the Constitution, a menace to democracy, and a threat to the nation as a whole.” American Bridge’s approach to attacking Cruz would be a more traditional “straight-up ideological battle,” against a politician who “isn’t much more than a regional candidate,” Brock told the donors. It would involve casting the Texas senator as an extremist “who wants to evict immigrant families, deny women access to health care, cut taxes for the rich and bomb the Middle East ‘until the sand glows.’”

A great threat, but these days everyone claims to have beans; wake me up when they spill them.