By Ronald J Hansen | The Arizona Republic
U.S. Rep. David Schweikert’s chief of staff quit Monday amid a House Ethics Committee investigation of both men.
Oliver Schwab, who has been with the Arizona Republican since his successful 2010 congressional campaign, is stepping down to have surgery and work as a U.S. Coast Guard licensed maritime captain.
Schweikert named Katherina Dimenstein, his legislative director, to head his office. She first worked with Schweikert in 2012 and served as a policy adviser to Sen. Joni Ernst, R-Iowa, in 2016.
Last month, the ethics committee unanimously voted to create a special subcommittee to investigate Schweikert and Schwab for misspending and other issues.
