(Editor's note: This story has been updated to include a statement from Sen. Patrick Leahy (D-VT).) Top Senate Republicans have introduced an amendment that would require parity between defense and non-defense spending increases for fiscal year 2022, arguing it is needed to compete with China. Senate Appropriations Committee Ranking Member Richard Shelby (R-AL) and Senate Armed Services Committee Ranking Member Jim Inhofe (R-OK) have introduced an amendment that, if adopted, would require defense and non-defense parity across all budget...