Its unfortunate to see him leave. But he is in fact exiting.

Sources

CNN

http://www.cnn.com/2016/03/04/politics/ben-carson-new-role-my-faith-votes-cpac/index.html?sr=fbcnni030416ben-carson-new-role-my-faith-votes-cpac1105PMVODtopLink&linkId=21942838

Click on Detroit

http://www.clickondetroit.com/news/politics/ben-carson-sees-no-path-forward-after-super-tuesday

IBT

http://www.ibtimes.com/ben-carson-officially-drops-out-cpac-republican-presidential-candidate-leaves-2330638