Lawmakers noted their letter comes as “recent IRS staffing challenges caused by the Trump Administration” have complicated the processing of outstanding tax refunds.

Before Tuesday, a district court had barred the Trump administration from firing federal employees en masse as his executive order calling for “large-scale reductions in force” undergoes legal challenges.

The high court said it had based its decision on the legality of Trump’s executive order, and didn’t rule on whether any reorganization plans broke the law.

The Supreme Court has lifted the hold on President Donald Trump's plan to reduce the federal workforce, paving the way for potential mass layoffs within the government. This decision represents a significant victory for the Trump administration,

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.

After Supreme Court Justice Jackson issued a solo dissent against President Trump’s federal layoff plan, Jonathan Turley criticized her decision as 'judicial abandon.'

Shannon Ellis, head of the union that represents Kansas City IRS employees, said the Trump administration won’t even confirm how many local federal workers have been lost. But she said that the layoffs and policy changes are demoralizing and delaying critical services.

US to lay off State Dept. staff in major reorg; Trump raises Canada tariffs to 35 per cent amid fentanyl dispute. State Department will begin issuing layoff