CBS: Casey, Brown projected winners

In races for US Senate in Pennsylvania and Ohio, CBS is projecting that Democrats will take both seats.

CBS News estimates that when all the votes are counted, Democrat Bob Casey will have defeated Republican Sen. Rick Santorum in Pennsylvania — a second big pickup for the Democrats in their bid to win a majority in the Senate.

In Ohio, Democratic Rep. Sherrod Brown is the projected winner over incumbent Republican Sen. Mike DeWine.

Other critical Senate contests in Virginia, Tennessee, Maryland, Missouri and New Jersey were too close to call.

Santorum slides off the national stage, hopefully for good.