Bloomberg campaign: Sanders' aide claim that Bloomberg had heart attacks "an absolute lie"; New Sanders ad targets Biden over voter enthusiasm; Sanders, Bloomberg brace for attacks at last Democratic debate before Nevada caucuses; Biden slams Bloomberg: "he didn't endorse Barack or me when we ran"; The money trail behind those granted clemency by Trump; Rod Blagojevich on clemency: "I'm a Trump-ocrat"; Assange lawyers say WikiLeaks founder offered pardon if he denied Russia hacked the DNC, WH denies claim; China expels three Wall Street Journal reporters amid criticism of coronavirus handling