Donald Trump has again hit out at Barack Obama, accusing the 44th president of “trying to take credit for the Economic Boom taking place under the Trump Administration” in response to his predeccessor’s tweet remembering his signing of the Recovery Act in 2009 at the onset of the Great Recession.Democratic 2020 front-runner Bernie Sanders has meanwhile hit back at rival Michael Bloomberg following criticism of his supporters by posting a picture on Twitter of the former New York mayor golfing with the president, suggesting there is little real difference between the two men. Mr Sanders is surging ahead in the polls while Mr Bloomberg has just qualified for his first primary debate.