CHICAGO — On the fourth and final morning of the Democratic National Convention, former President Donald Trump‘s campaign sent out his ex-primary opponent and current surrogate Vivek Ramaswamy swinging. The billionaire biotech entrepreneur closed out a week of counterprogramming from the Republican ex-president, with Ramaswamy excoriating Kamala Harris over the vice president’s record on everything from the 10 million illegal immigrants who entered the country since President Joe Biden appointed her the border czar to her new economic proposals.

“That’s alarming that several hundreds of thousands of kids have gone completely unaccounted for and are now vulnerable to be sold into the equivalent of slavery in the United States of America,” Ramaswamy said, referring to the new Department of Homeland Security inspector general report that indicated an additional 320,000 minor migrants have gone missing under Harris’s term. “So I think this form of child slavery, when you use a word like child slavery, you think about something happening halfway around the world, in another hemisphere, another century. It’s actually alive and well right here in the United States of America, and yet, the very people who were responsible for it are the ones who preach compassion. That’s not compassion. That’s cruelty.”