Malik Obama unleashed on his half-brother Barack Obama in his new tell-all book, calling the former president a “cold and ruthless” person who abandoned his Kenyan family in their greatest hours of need.

“He got rich and became a snob,” Malik Obama told the NewYork Post, “What I saw was he was the kind of person that wants people to worship him. He needs to be worshiped and I don’t do that. I am his older brother so I don’t do that.”

In his book titled “Big Bad Brother From Kenya,” which Malik Obama spent 22 years writing, he criticized Barack Obama for turning his back on his family members.

Barack Obama was not supportive of his brother setting up a foundation. He also refused to build a house for an aunt who lived in near poverty, worked selling charcoal. According to Malik Obama, Barack Obama was also reluctant to help with burying another aunt when she died penniless in Boston.

“She really had been good to him,” Malik Obama wrote. “I don’t understand how somebody who claimed to be a relative or a brother can behave the way that he’s behaving, be so cold and ruthless, and just turn his back on the people he said were his family.”

Barack Obama has teamed up with presumptive Democratic presidential nominee Joe Biden to bring the former president back to the White House.

During fundraising events, Obama has pulled in more than $24 million for the Biden campaign in the past two months.

He privately attacked President Trump, bringing up past accusations of the president “assaulting women” and his efforts to push “nativist, racist, sexist” fears and resentments, reported The New York Times.

“It’s just glued to Fox News and Breitbart and Limbaugh and just this conservative echo chamber—and so, they’re going to turn out to vote,” Obama told his donors. “What he has unleashed and what he continues to try to tap into is the fears and anger and resentment of people who, in some cases, really are having a tough time and have seen their prospects or communities where they left, declining. And Trump tries to tap into that and redirect in nativist, racist, sexist ways.”

Most recently, Obama used the funeral tribute held in honor of Rep. John Lewis (D-Ga.), a civil rights leader, to raise issues of political concern.

Malik Obama publicly endorsed then-candidate Donald Trump for president in 2016. He said his support for the president remains unwavering.

“[I’m] 110 percent still with Trump,” he said. “He’s not fake. He tells us the way he sees it. He’s bold and fearless and he’s tough.”

Malik Obama also said Biden was too old to lead the country. “I don’t think he’s going to make it. His teeth are falling off,” he said to the Post. “He looks like he’s going to drop dead.”