NEW : Clinton in hospital Friday morning , former DNC chairman says . Tuesday : Cable installed during the bypass surgery was blocked . Thursday 's stent procedure opened artery that graft was supposed to open . `` He really toed the line in terms of diet and exercise . Former president came to hospital after feeling intense pain over several days .
NEW : Clinton in hospital Friday morning , former DNC chairman says . Tuesday : Cable installed during the bypass surgery was blocked . Thursday 's stent procedure opened artery that graft was supposed to open . Former president came to hospital after feeling intense pain over several days .