A Trump-obsessed, steroid-popping ex-stripper from Brooklyn was busted in Florida on Friday for mailing more than a dozen bombs to the president’s rivals over the last week.

Cesar Sayoc Jr., 56, was nabbed at an AutoZone parking lot in Plantation for allegedly sending the improvised explosive devices to former President Barack Obama, Hillary Clinton, Robert De Niro and at least 10 others.

It was a single fingerprint on a package mailed to Rep. Maxine Waters (D-Calif.) that helped authorities narrow their nationwide manhunt to the onetime New Yorker with a lengthy rap sheet, officials revealed.

“Once I knew [the FBI] had a print, I was pretty confident we’d be able to find the right person,” FBI Director Chris Wray said at a press conference after the arrest.

“We see unbelievable work like this on TV and in Hollywood, but to see it up close, in reality, is something to behold.”

Investigators also found a possible DNA link between samples on two bombs and material collected from the MAGA-hat-wearing muscleman during a previous arrest in Florida, Wray added.

The hunt began with a bomb found in billionaire Democratic megadonor George Soros’ mailbox in Katonah, Westchester County, on Monday, but the feds didn’t get the print until Thursday, he said.

They closed in on him the next day at the auto-parts store, where neighbors told The Post that FBI vans and helicopters descended at around 10 a.m.

He was led into custody sporting a skin-tight muscle shirt and handcuffs, with his thinning hair pulled back into a rat tail. His white van, plastered with pro-President Trump stickers, was also seized from the parking lot.

Sayoc was charged with five federal crimes, including interstate transportation of an explosive, illegal mailing of explosives, making threats against former presidents and assaulting federal officers.

He will be prosecuted in New York and was scheduled to make his first court appearance in Manhattan federal court Monday afternoon. He faces up to 48 years behind bars if convicted.

Each device was made with about six inches of PVC pipe, a small clock, a battery, wiring and “energetic material,” which Wray described as “potential explosives and material that give off heat and energy through a reaction to heat, shock or friction.”

“Though we’re still analyzing the devices, these are not hoax devices,” Wray said.

Some of the packages also included photos of the intended recipient marked with a red “X,” the criminal complaint says.

Asked why Sayoc, a registered Republican, was allegedly targeting Democrats, Attorney General Jeff Sessions said he couldn’t say “other than what you might normally expect.”

“He may have been — appears to be partisan, but that will be determined by the facts as the case goes forward,” Sessions said.

Sayoc lists Bensonhurst, Brooklyn, as his hometown on Facebook but grew up in Florida and attended high school in North Miami Beach, according to the Miami Herald.

A sticker on his van reads “Native Americans For Trump,” and he repeatedly referenced the Seminole tribe social media, but a tribe spokesman told the newspaper that it had no record of him having ever been a member.

Sayoc studied at Brevard College in North Carolina for three semesters in the early 1980s, then spent a year at the University of North Carolina at Charlotte but ended up pursuing a far less academic career path.

Ohio event promoter Tony Valentine told The Washington Examiner that Sayoc was a “big musclehead” who traveled to strip clubs across the country during the 1990s but dreamed of being a professional wrestler.

“He really couldn’t find his niche in life, and I guess he found it now,” Valentine told the Examiner. “Back in the ’90s, he was running around from Minnesota to the Carolinas to Florida. He was like a gypsy.”

A cousin told NBC News that Sayoc worked as an exotic dancer and a bouncer at many strip clubs.

He was a “loose cannon” and a “lost soul” who didn’t speak to his family and had a problem with steroids, said the unidentified cousin, who lives in Florida.

“He’s been in the strip clubs since he was 22. That was his life,” the cousin said.

“He was a male dancer, and he wanted to be a wrestler. He was taking steroids. He was all buffed up . . . He was built like a rock.”

He was also building up quite a criminal history.

Sayoc was arrested several times for theft in the 1990s. And in 2002, he was collared for threatening to blow up the Florida Power & Light utility company, warning a representative that the attack “would be worse than September 11th,” according to a police report.

He also “threatened that something would happen to the FP&L representative if they cut his electricity,” the report alleged.

Sayoc pleaded guilty in the case and was sentenced to one year of probation.

Two years later, he faced felony charges for possession of a synthetic anabolic-androgenic steroid. The charges were dismissed.

In 2012, he filed for bankruptcy, telling the court he had $4,175 in personal property and more than $21,000 in debts.

“Debtor lives with mother, owns no furniture,” his lawyer wrote in a court document.

Valentine says he vouched for Sayoc a few years later in a grand-theft auto case.

“I met him a million years ago, and he got caught stealing and wanted me to write a letter to the judge down in Florida,” Valentine told the Miami Herald. “I never should have done that.”

At the time, Sayoc told the court he was a road manager for traveling male revue shows, including “Chippendales, International Gold Productions, Cesar Palace Royale Burlesque Show, etc.”

He became an ardent supporter of the commander in chief in recent years.

In addition to driving around in his sticker-adorned van, he left a long trail of social-media posts praising Trump and denigrating Democrats — including many posts about the alleged targets of his packages.

“Hey slime scum U like make threats run your hole.Do not worry your cover up Fast Furious with your b—h Obama not forgotten about our very close friend of we Unconquered Seminole Tribe.See u soon Tick Tock 4,” he recently tweeted to former Attorney General Eric Holder.

He called Waters a “poverty pimp” and said Soros “worked for Hitler.”

In other tweets, he railed against news organizations — including CNN, where two of the packages were sent.

“More lies con job Propaganda bye failing failing CNN garbage,” he tweeted July. “They have nothing left but more lies. CNN needs to be abolished once for all.”

He also posted images of himself at Trump’s inauguration and from a rally a month later, CNBC reported.

At the time of his arrest, he was living out of his van after being kicked out of his parents’ home, a law-enforcement official told CNN.

Additional reporting by George Willis, Chris Perez, Lia Eustachewich and Wire Services