Rick Santorum calls Mitt Romney to concede

◼ FULL SPEECH: Rick Santorum suspends his campaign - The Right Scoop

◼ Santorum is scheduled to make an announcement at a press conference in Gettysburg, Pa., at 2 p.m. ET. - Yahoo

◼ Thanks and prayers to Santorum and his family for their energy and passion. - Michelle Malkin

◼ Breaking: Santorum to suspend campaign - HotAir

◼ Live Feed - CNN

Mitt Romney: "Senator Santorum is an able and worthy competitor, and I congratulate him on the campaign he ran."