So that's what he meant about being a uniter not a divider

From a scoop in today's Wall Street Journal (subs. req'd):

Citing confidential Justice Department opinions drafted after Sept. 11, 2001, the report advised that the executive branch of the government had "sweeping" powers to act as it sees fit [including torture] because "national security decisions require the unity in purpose and energy in action that characterize the presidency rather than Congress."