FCC Chairman Kevin Martin confirmed Thursday that he will leave the commission effective next Tuesday, the day Barack Obama is sworn in as president. Obama has nominated Julius Genachowski to succeed Martin as chairman, but Martin could have remained an FCC member. He has been a lightning rod for controversy since he joined the commission in 2001 (he became chairman in 2005), pushing for more stringent enforcement of decency regulations and proposing à la carte pricing of cable channels. Only last week he voiced strong opposition to President-elect Obama's call for extending the Feb. 17 deadline for the transition to digital broadcasting. In his letter of resignation to President Bush, Martin said that during his tenure he had attempted "to balance deregulation with consumer protection."