Killing Dogs. Taunting the Homeless. Praising Al Capone. This Is Trump’s Party.

John McEntee — who started out carrying Donald Trump’s bags and rose to become, in the chaotic final days of Trump’s presidency, his most important enforcer — has a TikTok account. In a video he published last week, he explains how he likes to keep “fake Hollywood money” in his car to give to homeless people. “Then when they go to use it, they get arrested, so I’m actually like helping clean up the community,” he said.

With his boyish face and slicked-back hair, McEntee, the former director of the White House Office of Presidential Personnel and a man likely to be central to staffing a future Trump administration, comes off a lot like Patrick Bateman, the homicidal investment banker played by Christian Bale in the 2000 film “American Psycho.” The clip’s smug villainy, I think, offers a clue to why South Dakota Gov. Kristi Noem, thirsty for a bigger role in MAGA world, might have thought she could ingratiate herself by bragging about killing a puppy.

Right wingers often rain contempt on what they call virtue signaling, a performative kind of sanctimony epitomized by the “In This House” yard signs that once dotted progressive neighborhoods. Partly in response, they’ve developed what’s sometimes called vice signaling, the defiant embrace of cruelty and disdain for social norms. Think of “rolling coal,” the practice of modifying diesel engines to make them belch dark exhaust in an effort to trigger environmentalists, or the way George Santos’s promiscuous falsehoods endeared him to hard-core MAGA acolytes.

A cult of Bateman has developed on the very online right, which is why images from “American Psycho” appeared multiple times in a bizarre ad for Florida Gov. Ron DeSantis during his abortive presidential campaign. And no one, of course, does vice signaling like Trump, who keeps comparing himself to the gangster Al Capone.

For years Noem has been trying, with a parvenu’s pathos, to fit into Trump’s circle. She’s jettisoned the sensible haircuts and subtle makeup of her early political career for the Palm Beach look popular at Mar-a-Lago, and brought on Trump’s former campaign manager Corey Lewandowski as a top adviser. Two months ago, she put out a bizarre, infomercial-style social media spot about traveling to Texas for cosmetic dentistry, which seemed like an attempt to show Trump her aptitude for corrupt and shameless salesmanship. (The consumer advocacy group Travelers United is now suing her for deceptive advertising.)

Until recently she was considered a possible Trump vice-presidential prospect, and her new book, “No Going Back,” could have been titled “Pick Me!” In it, she criticizes former R.N.C. chair Ronna McDaniel for not doing more to investigate “fishy voting” after Trump’s 2020 defeat and blasts Nikki Haley for trying to distance herself from Trump after Jan. 6. Writing about what she’d do if she were to become president, she says, nonsensically, that she’d hire John Kerry just for the pleasure of being able to tell him, “You’re fired!”