job. when you talk about banning fracking, when you talk about a carbon-free economy by 2030 or 2050, you are saying we are going to kill every coal job in the country, every oil and gas job, all of the shipping jobs. we're talking about millions of positions. that is not a vote-getter out at the polls. paul: joe biden was attacked for having had a fundraiser hosted by someone who invested in natural gas. is that now taboo? >> that is taboo. one of the candidates was asked about the spending of his campaign on private flights as he flies to iowa, new hampshire and these states. you're going to have these guys take a bus to iowa? [ laughter ] paul: maybe that's what they should do, if they have the courage of their convictions. >> well, that would be a very long campaign and probably not a very successful one. [ laughter ] paul: thank you all. as ten of the democratic presidential candidates prepare