Barbie doll formally threw her pink hat into the presidential campaign ring by unveiling the new 2012 Barbie I Can Be…  President doll. The global icon will represent girls of all ages on her road to the “Pink House,” serving as the “B Party” candidate. Barbie will hit the campaign trail with a full-scale “glam-paign” alongside her longtime political advisor – The White House Project. With a desi…