Complex sentence: Having unsuccessfully sought, at age 76, the PMDB presidential nomination in 2006, he backed Geraldo Alckmin against Lula, despite having been considered again, despite his advanced age, as a candidate for President in 2010.
Split into simpler sentences: Having unsuccessfully sought, at age 76, the PMDB presidential nomination in 2006, he backed Geraldo Alckmin against Lula. Despite having been considered again, despite advanced age, as a candidate for President in 2010.