Janet Yellen is still expected to be the next chair of the Federal Reserve, but CNBC reports that she might hit some turbulence in the Senate thanks to Rand Paul. He's threatening to do what he can to hold up the nomination unless he gets a vote on his Fed transparency bill—a measure long championed by his Fed-hating dad, Ron Paul, that would require a full audit of the agency. Still, Paul would need 40 fellow senators to block the nomination, and that doesn't look likely.