Probably not. There are some genealogy blogs that say Mark Twain is a very, very distant cousin of the president's on his mother's side, but there is no way to know how reliable that information is; and President Obama has never mentioned any relationship between his mother's family and that of Samuel Clemens (Mark Twain).
barack obama
Mark Obama Ndesandjo is the mixed-race half brother of President Barack Obama.
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Mark rhymes with the word "park."
Yes, Barack Obama is on Twitter. His official fan Twitter page can be accessed by clicking on the related link below. President Obama's verified account name is @BarackObama; you know it's his real account because it has the blue "verified" check mark next to his name.
Mark Twain, Author of Tom Sawyer's REAL name was Roger Clemens.
Maya Soetoro-Ng Malik Obama Abo Obama Auma Obama Bernard Obama Mark Ndesandjo David Ndesandjo George Hussein Onyango Obama
While some people mistakenly believe that Mark is related to actress Angie Harmon, a noted Republican activist, they are not related. Angie has been very vocal about her politics, but Mark has not. In fact, Mark has said little about his political views, so we can only speculate about which candidate got his vote.
Mark Twain was white.
Shania Twain has a younger brother named Mark, but that's not the famous author Mark Twain. Shania's brother Mark was born in the 1970s.
Mark Twain
President Obama is not a terrorist. There is also no evidence anyone in his family is a terrorist. The president has no biological brothers: he does have a half-brother (from his father, Barack Obama, Sr.) named Mark Ndesandjo; there is no evidence that Mark is a terrorist either.