A new study suggests links between ancestors’ slave holdings and higher net worth for members of Congress, like U.S. Sen. Angus King. They found even when accounting for other factors like age, education, ethnicity, race and sex that an ancestor’s slave holdings were associated with a fivefold higher net worth than those members of Congress with no family history of slave holding. The study’s authors caution that the results have limitations because members of Congress tend to be wealthier than the general population, that the ancestry data only accounts for slave holdings after 1776 and legislators’ financial disclosures don’t account for all sources of wealth.