Investments in limited partnerships, an offshore hedge fund and subprime-mortgage lenders have made this wealthy presidential candidate even richer. Former Sen. John Edwards has exploited the middle of his famous three H's -- his $400 haircuts, his hedge-fund consulting and his new 28,000-square-foot home -- to spread his fortune around a maze of trusts and accounts that total something between $29.5 million (his campaign's estimate) and $62 million (the high end of ranges described in his federal disclosure). Edwards' sprawling, 48-page campaign-finance disclosure for 2006 reveals substantial investments in limited partnerships, subprime-mortgage lenders and an offshore hedge fund. The latter...