Apollo Global Management has a track record of draining assets from companies it acquires and will do the same if its affiliate, Athene, is allowed to purchase Aviva USA, a union representative warned Iowa regulators Wednesday. The Des Moines Register reported that Apollo, which is backing a $1.55 billion deal to purchase Aviva USA, has pulled $345 million out of Caesars Entertainment Corp., a casino company it acquired in 2008. During a hearing before the Iowa Insurance Division, Jim Baker, a representative of UNITE HERE, said Apollo has drained $20 million from Athene via fees in the first quarter.