washington securities exchange commission monday approve budget audit watchdog oversee work lead u.s. account firm sec staff recommend approve budget public company account oversight board pcaob sec commission chair mary jo white commissioner kara stein endorse 257.7 million budget commissioner michael s. piwowar vote say skeptical nearly percent increase pcaob budget year ago also say persuade additional burden account firm broker-dealers fund pcaob fee merit commission represent safeguard otherwise unilateral ability impose account support fee company broker-dealers say sec control budget assign members pcaob conceive prevent future account scandals like one bring energy company enron 2001. sec two vacant seat senate bank committee due tuesday consider two nominees put forward white house commission chair mary jo white say intend wait agency full five-member panel move forward appoint new pcaob chief current pcaob chairman jam doty term expire last fall sec approve budget independent account board