I don't find this surprising at all. The super-wealthy have always hedged their bets on politics and this is pocket change for Ms. Walton.
By far most surprising thing in year-end filings is Alice Walton giving $25K to @ReadyForHillary. She has been a major GOP super pac donor.Guessing Alice is still contributing heavily to GOP super pacs, probably in far greater amounts via the various dark money vehicles spawned by Citizens United.
— Nick Confessore (@nickconfessore) February 3, 2014