New Delhi, Dec 16: An emotiol Sonia Gandhi, who retired as Congress chief - a position she had held since 1998, said “savage persol attacks” by his opponents had made her son and new party President Rahul Gandhi “brave and strong-hearted”. In her speech at the ceremony to hand over the charge of party President to her 47-year-old son, Sonia Gandhi said she was confident that “with a new and young leadership, our party will be reinvigorated and bring about the changes we need”.