CHICAGO (AP) — Top officials at the foundation behind the Abraham Lincoln Presidential Library and Museum said Wednesday that fundraising is drying up because of tensions between the library’s executive director and the director of the state agency that oversees it.

The Abraham Lincoln Presidential Library Foundation’s chair and CEO told a legislative panel in Chicago on Wednesday that they’ve heard from numerous donors who are holding off until “issues are resolved” — and that this year’s fundraising totals are about $1.5 million behind the $4.7 million raised by the foundation in 2013.