obamacare, come up with a brand-new beautiful health care. >> there is no -- he's never come up with a plan. i guess we're going to get the pre-existing condition plan the same time we get the infrastructure plan that we waited for waited for since '17, '18, '19, and '20. >> reporter: moderator kristen welker asked the president to respond to allegations he is fueling racial divisions. >> i am the least racist person in this room. >> this guy is a dog whistle about as big as a fog horn. >> nobody has done more for the black community than donald trump. and if you look, with the exception of abraham lincoln -- possible exception, but the exception of abraham lincoln, nobody has done what i've done. >> abraham lincoln here is one of the most racist presidents we've had in modern history. >> reporter: today, president trump is seizing on a moment near the very end of the debate when biden said he wants to see the end, eventually, of the oil industry. >> would you close down the oil industry? >> i have a transition from the oil industry. yes. >> oh, that's a big statement. >> that is a big statement. i would stop -- >> why would you do that?