article_snippet.sent: annually with the Internal Revenue Service to maintain annually with the Internal Revenue Service to maintain their . tax-exempt status .
article_snippet.sent: filing separate tax returns in 2010, and has previously refiled .
article_snippet.sent: at least once both its 2010 and 2011 form 990s.
article_snippet.sent: For both those . years, Hillary said Hillary initial filings had over-reported .
article_snippet.sent: for more than four decades, referring to the CHAI filings.