TROLL LEVEL: SUPREME GALACTIC OVERLORD. Obama’s half-brother will be at Vegas debate cheering for Trump.

President Obama’s Kenya-born half-brother Malik will be in the audience in Las Vegas on Wednesday night when Donald Trump and Hillary Clinton square off in their third and final debate.

Malik — an American citizen who lives in Washington, DC, when he’s not in Kenya — says he will be a guest of Trump, the Republican nominee he supports for president.

“I’m excited to be at the debate. Trump can make America great again,” Malik told The Post.

“I look very much forward to meeting and being with Malik,” Trump said. “He gets it far better than his brother.”

Malik agrees with Trump that the mainstream media is biased, and he dismisses the women who claim Trump kissed or groped them without their permission.

“I don’t believe them,” Malik said. “Why didn’t they come forward before?”

Malik also blasted Clinton’s performance as secretary of state for exacerbating the chaos and violence in the Mideast. Malik said ousted Libyan leader Moammar Khadafy had been a good friend. “Check out the situation in Libya now,” he said.

Well, it’s not like Libya’s in the news much. Nor will it be, until after the election. . . .