Complex sentence: Capuano is considered to be one of the biggest supporters in Congress for increasing international aid funding, and has advocated bringing attention to the crisis in Sudan and helped secure funding aimed at assisting developing African nations.
Split into simpler sentences: Capuano is considered to be one of the biggest supporters in Congress for increasing international aid funding. He is an advocate to bringing attention to the crisis in Sudan and helped secure funding aimed at assisting developing African nations.