President Barack Obama is stepping back into the debt-ceiling talks, calling Congress’ top two Democrats to the White House for a meeting. White House aides said Obama would receive an update Saturday from Senate Majority Leader Harry Reid and House Minority Leader Nancy Pelosi. The invitation came shortly after the GOP-controlled House rejected Reid’s debt-ceiling proposal in a largely symbolic vote. The chief negotiations are taking place in the Senate. Reid and his GOP counterpart are seeking a compromise plan that . . . . .