Some of Clinton 's 18 million supporters are hesitant to back Obama . Obama 's Web site allows visitors to thank Clinton for supporting his campaign . Clinton on Tuesday suspended her campaign ; endorsed Obama . `` Obviously , I am thrilled and honored to have Sen. Clinton 's support . Mixed opinion among Democrats whether a joint ticket is a good idea .
Some of Clinton 's 18 million supporters are hesitant to back Obama . Obama 's Web site allows visitors to thank Clinton for supporting his campaign . Clinton on Tuesday suspended her campaign ; endorsed Obama . Mixed opinion among Democrats whether a joint ticket is a good idea .