Christine O'Donnell won the backing of Sarah Palin and got national attention as a tea party-supported candidate.
But her bid for the US Senate seat for Delaware fell short.
O'Donnell says the problem lies with the Republican Party and its inability to unite behind her the way it did in Kentucky behind Rand Paul.
On ABC's "Good Morning America," she said that the "lesson to be learned is to unite." She said there was too much infighting after she beat Republican establishment favorite Rep. Mike Castle in the GOP primary.
Republican strategist Karl Rove, for example, was not an O'Donnell fan. "There were a lot of nutty things she has been saying that don't add up.” Rove said.
O'Donnell says that she doesn't take Tuesday's loss to Democrat Chris Coons personally. Coons won the Senate seat with 57 percent to O'Donnell's 40 percent, according to the Associated Press.