Barney Frank , the liberal Democrat who spearheaded one of the most significant pieces of financial reform legislation since the Great Depression, died Tuesday night after a battle with congestive heart failure. He was 86 years old. “He was, above all else, a wonderful brother,” Frank’s sister, Doris Breay, told NBC10 Boston Wednesday morning in confirming her sibling’s passing. “I was lucky to be his sister.” The former Massachusetts congressman had spent his last months in hospice care at his