Complex sentence: One substantive change madee by the new constitution was to lower the minimum age for presidential candidates from 40 to 35, making Andry Rajoelina, who is 36 and is the President of the country's High Transitional Authority eligible to stand in presidential elections.
Split into simpler sentences: One substantive change made by the new constitution was to lower the minimum age for presidential candidates from 40 to 35. This made Andry Rajoelina, who is 36 and is the President of the country's High Transitional Authority, eligible to stand in presidential elections.