Republican SEC commissioner Daniel Gallagher, who submitted his resignation letter to the White House in May, said he won't stay on at the agency past Oct. 2. Gallagher and Democratic SEC commissioner Luis Aguilar, whose term expires in December 2016, were expected to remain with the SEC until President Barack Obama nominated their replacements. But that process has been delayed after progressive-leaning groups pressured the White House not to replace Aguilar with any corporate lawyers who represent Wall Street clients. Gallagher said he could leave sooner, if his successor is appointed this month. Aguilar said he has "no current plans" to leave the agency.

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