that ousted President Hosni Mubarak on 11 February 2011. Khalifa served in the post until August 2012.

Khalifa was appointed minister of utilities, drinking water and sewage in August 2012 as part of the cabinet led by Prime Minister Hisham Qandil, and was an independent minister. His tenure ended on 17 July 2013 when the interim government led by Prime Minister Hazem Al Beblawi