To my knowledge, there isn't a mainstream comic that combines Black Panther and Barack Obama. Usually, comic storylines focus on the established characters and their own universes.
I haven't come across such a comic. But it's possible that some independent or fan-made comics might exist.
I don't think there's an official comic with both Black Panther and Barack Obama. Comics tend to stick to their predefined characters and storylines. However, you never know if someone out there has created a custom or crossover comic privately.
Look to Chapter 166 for the clearest answer. It begins with Only after everyone in the small courtyard had left, did Zhao Lang stride..., keeps building through Through the window, he saw the girl sitting at the table reading, her face..., and lands on However, after interviewing the villagers, no.
The best chapter pointer here is Chapter 152, "A Man of Many Talents and Wealth Draws People Near". It opens with While most of the villagers of Chixia Village were gathered at the village... and closes on That shouldn't be." Zhao Lang's eye color darkened, "I'm afraid he's....
If you want the clearest chapter reference, go to Chapter 149. Early on, Seeing that Zhang Cheng's glass was nearly empty, Du Qinglian immediately...; later, the chapter leans on Director Zhang, this Zuichun Mountain is a specialty of Bi Garden, brewed....
Chapter 144 is the strongest chapter-level answer because it starts from Ordinary people would have been at a loss in this situation by now. and follows through on He then noticed the hand—fair and slender, not at all like an auntie's..
If you want the clearest chapter reference, go to Chapter 151. Early on, Now it was Zhang Cheng's turn to be confused.; later, the chapter leans on The problem lies with He Yun?. By the close, I will have my assistant pay the bill., and the chapter closes with Was he...
If you want the clearest chapter reference, go to Chapter 163. Early on, Su Yinwan entered a small room, guided by a staff member.; later, the chapter leans on Inside, there was only one sofa, and she walked over to it as directed by....
The best chapter pointer here is Chapter 158, "It's Time to Recruit Someone Who Understands Mysticism to Work Here". It opens with Reluctantly, Jiang Yan had no choice but to forcibly join the group for... and closes on we're just very close friends." Sister Li had a vast number of followers....
Chapter 170 is the strongest chapter-level answer because it starts from Watching the two who had long remained silent, the PD shifted his position... and follows through on [Didn't the other guests also do farm work in the rain all morning, isn't....
The best chapter pointer here is Chapter 172, "Shang Shaojing is Here Too?!". It opens with Not only Shu Yan, but the entire internet was shocked when they saw Su... and closes on Where's the chaotic scene I was anticipating?.
The best chapter pointer here is Chapter 164, "Congratulations to Jiang Yan for scoring one point!". It opens with Damn, the production team is so shady, they're still doing a live... and closes on The current Jiang Li did indeed make him see her in a new light, to some....