On the oxygen channel is a show called "bad girls club mexico" a girl named meghan from that show claims to be Obama step daughter, is it true
Although 21 year old Mehgan likes to introduce herself to people as "Barack Obama’s stepdaughter,” it's not true.
U.S. President Barack Obama has two daughters with his first and only wife, Michelle Obama (Barack being her first and only husband): Sasha (born 2001), and Malia (born 1998).
Mehgan actually does admit to the other girls, on camera, that she's not actually related to Obama, but says that she feels like she should be. You can hear her admit it just after the 2:20 mark in the video below.
The series has come under fire recently as an example of a reality series that reinforces negative stereotypes under the guise of "reality TV," all in the name of profit.