Chief of staff Eric Elk is leaving the Ill. Republican's office to plan for his reelection.
The Republican said the incumbent senator knows she's "on the wrong side of the issues."
The campaign committee for Senate Republicans followed a trust but verify approach.
Begich did not concede, according to reports.
The Republican is announcing early in hopes of warding off challengers.
In several races, the truism that candidates matter still held true.
Their shellacking revealed polls were off and their ground game was insufficient. Why?
The DSCC's move underscores the Democrat's underdog status in the December runoff.
Ex-RNC chief says "in my heart I know a change in the outcome is not possible."
"[T]hey don't want to admit" GOP "actually beat them at their own game," said Priebus.