Jeb Bush recruits a former executive at Wal-Mart to manage a sprawling campaign staff, according to the New York Times.
Rand Paul's "audit the Fed" issue is likely to come up for other presidential hopefuls, Politico's Ben White says.
Some longtime supporters of Chris Christie are turning to his rivals, The New York Times reports.
"We need aggressive leadership to take the fight to them," possible GOP presidential candidate Scott Walker tells CNBC.
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