Your quoting is unparseable without watching the video...

Paulson said about Obama: "He very nicely warned me, 'You better take care of the Republican candidate, because if I start hearing populist anti-bailout rhetoric from him, I'm going to have to start talking that way.'."

I.e. Paulson claims Obama said the sentence starting with "You better...".

And just reading this sentence makes me wonder what the context of why Obama said this.