Complex sentence: On 11 January 2015, she won the 2015 Croatian presidential election, and as of on 19 February 2015 will take the position of the 4th President of Croatia.
Split into simpler sentences: On 11 January 2015, she won the 2015 Croatian presidential election. On 19 Februrary 2015 she will take the position of the 4th President of Croatia.