Richest US presidential candidates in history

 When Al Gore narrowly lost to George W Bush in the 2000 presidential election, he was worth about $1.7 million — a paltry sum by the standards of other contenders on the list.But in the years since, his wealth has ballooned, according to Bloomberg, to an estimated $200 million. This is owing to savvy sustainable investments and the sale of a news network he founded, Current TV, to Qatari-based Al Jazeera for an estimated $65 million in 2013.