The Maryland Dem is the early favorite to replace retiring Sen. Mikulski.
The Democratic establishment is lining up against P.G. Sittenfeld, Strickland's young primary challenger.
A Chicago newspaper says the Democrat will challenge GOP Sen. Mark Kirk.
Outgoing Dem leader throws support behind ex-Attorney General Catherine Cortez Masto.
Democratic lawmaker said she talked to Reid shortly after he announced he'd retire.
Senate minority leader's retirement will mark end of a long career and open up a top seat.
Eric Holcomb is a former Indiana GOP chairman.
Ron Johnson, a top Democratic target, says student loans are too easy to get.
The establishment favorite could still face a primary challenge.
Former Rep. Baron Hill (D-Ind.) says he's "strongly considering" a bid for retiring Sen. Dan Coats's (R-Ind.) seat, giving Democrats a potentially strong candidate.
"Since the news of Senator Coats’ announcement this morning, I have...