The red-hot labor market is refusing to cool down, showing the remarkable resilience of President Joe Biden’s economy but also making the Federal Reserve’s battle to curb inflation that much harder.

The U.S. economy added 339,000 jobs in May, blowing through Wall Street’s expectations that employment growth would slow as higher borrowing costs and tighter credit conditions take hold.

“The labor market and the economy it supports will just not go gently into that good night, despite policy efforts to cool both,” said Joe Brusuelas, chief economist at RSM.

While the unemployment rate ticked up to 3.7 percent and wage growth slowed compared to previous months, the Labor Department also revised its estimates from earlier months, saying that the economy added an additional 91,000 jobs this spring.

Surging employment figures in professional and business service, health care, and hospitality and leisure — where inflation has been especially stubborn — might prompt the Fed to reconsider a pause in campaign of interest rate hikes that central bank officials have signaled is coming for at least the June meeting.

Still, the Fed has left further rate hikes firmly on the table, even if it doesn’t raise rates this month.

Fed Chair Jerome Powell has repeatedly said the labor market needs to soften to help bring down prices. Going into Friday, investors overwhelmingly expected the Fed to hold off on raising rates at the Federal Open Markets Committee’s June 13-14 meeting.

There were hints throughout the week that Friday’s employment report would come in strong. Job openings spiked in April after falling the previous three months, the Labor Department announced on Wednesday. Payroll processor ADP’s report for May, published Thursday morning, also came in solid— though there were clear signs of softening at manufacturing and financial companies.

“It’s been a wild ride in terms of the data this week,” Gregory Daco, chief economist at EY-Parthenon, said in an interview prior to Friday’s report. “It makes it very difficult for the Fed and for market participants to assess what the Fed’s next move is.”