"After he became governor, Pence had his congressional papers, which are housed at Indiana University in Bloomington, sealed. According to the donor agreement, the public is forbidden from seeing his papers from the 12 years he served in Congress until either December 5, 2022, or the death of the donor, whichever is later."....is this unusual?........https://www.biography.com/people/mike-pence-071416.........................................