Complex sentence: In 2012, Uhlmann was appointed as "7.30" political editor therefore stepping down as host.Chris remained as political editor until 2013 when he announced that he would be working on a documentary about the Rudd and Gillard Governments for the ABC.
Split into simpler sentences: In 2012, Uhlmann was appointed as "7.30" political editor, therefore stepping down as host. Uhlmann remained as political editor until 2013 when he announced that he would be working on a documentary about the Rudd and Gillard Governments for the ABC.