Sidney Blumenthal, a longtime confidant of Bill and Hillary Clinton, earned about $10,000 a month as a full-time employee of the Clinton Foundation while he was providing unsolicited intelligence on Libya to then Secretary of State Hillary Clinton, according to multiple sources familiar with the arrangement.

Blumenthal was added to the payroll of the Clintons’ global philanthropy in 2009 — not long after advising Hillary Clinton’s presidential campaign — at the behest of former president Bill Clinton, for whom he had worked in the White House, say the sources.

While Blumenthal’s foundation job focused on highlighting the legacy of Clinton’s presidency, some officials at the charity questioned his value and grumbled that his hiring was a favor from the Clintons, according to people familiar with the foundation. They say that, during a 2013 reform push, Blumenthal was moved to a consulting contract that came with a similar pay rate but without benefits — an arrangement that endured until March.