Mitt Romney: “trickle-down racism” Very similar to the kind that "bubbles up"

MittRomneyThe Washington Post, reporting from an annual Romney-hosted summit (3 days at a luxurious Utah mountaintop resort):

[Romney] was emotional here Saturday as he delivered an impassioned case against Trump. He said the business mogul’s campaign rhetoric — the latest example being his accusations of bias by a federal judge because of his Mexican American heritage — is so destructive that it is fraying at the nation’s moral fabric and could lead to “trickle-down racism.”

“I love what this country is built upon, and its values — and seeing this is breaking my heart,” Romney told summit attendees, according to the Associated Press.

In response, from his Tampa rally, Mr. Trump insulted Mr. Romney by calling him a “total booger-head” [Correction: a “stone-cold loser.”]