First president in prison 

I think that it is an important and remarkable fact. My suggestion for the main article: Obama is the first sitting president in a prison. Ref. http://www.nytimes.com/2015/07/17/us/obama-el-reno-oklahoma-prison.html?_r=0
Probably add also a picture from NYT: http://static01.nyt.com/images/2015/07/17/us/17OBAMAWEBSUB/17OBAMAWEBSUB-superJumbo-v3.jpg .91.83.4.106