points. if anyone wants to defend keeping those high profits for insurance companies and high profits for drug companies, i think they re running in the wrong presidential primary. thank you very much. reporter: for biden, a shift in approach. a source close to biden s campaign telling cnn it is no longer that she s a liar. it s warren is a smarty britches who thinks if you don t agree with her you re an idiot. warren steadily rising, not the case for biden, who has made the pitch to voters he can reach across the aisle and get things done and win over moderates. we are in a time of crisis. and washington insiders and political pundits and people in our own party don t want to admit it. warren says that s not enough