Sarah Palin has joined the Donald Trump team.
Is she a has-been politically, or the darling of the Tea Party run in 2010?
Let's look at the last week.
South Carolina governor Nikki Haley delivered the Republican response to the State of the Union address.
In the speech, she spoke against "angry voices" like Trump.
Who helped Haley win her current job in 2010?
She endorsed her in May, when Haley trailed in the Republican primary.
Now they are on opposite sides.
Only because Palin was on Haley's side in 2010.
In three weeks, the Iowa caucuses will be done and New Hampshire will have voted.
If Trump continues riding high - with Palin's help - we'll know where the power lies this election year.