Elizabeth Warren: Is she or isn't she Native American?
By Moni Basu, CNN
(CNN) -- Writer Mark Trahant guessed the situation was a first: campaign jabs that centered on a candidate's claim of Native American roots.
He was referring to the Senate race in Massachusetts that pits Harvard University law professor Elizabeth Warren against Republican Sen. Scott Brown.
There are many issues of contention in this hotly contested race, but one of them has become Warren's claim to Native American ancestry.