The U.S. Supreme Court on Tuesday cleared the way for Donald Trump's administration to pursue mass government job cuts and the sweeping downsizing of numerous agencies, a decision that could lead to tens of thousands of layoffs while dramatically reshaping the federal bureaucracy.

The Supreme Court's conservatives said it was a federal judge in San Francisco, not President Trump, who exceeded her authority.

Federal agencies across government can resume laying off their employees en masse after the Supreme Court reversed a court order that barred those reductions, with several agencies likely to move swiftly to start cutting staff.