The claim that job losses since Trump took office exceed 500,000 is not supported by the most recent and authoritative data; while there have been significant downward revisions to job growth numbers and notable federal layoffs, total net job losses of that magnitude since January 2025 are not confirmed.
Bloomberg is now saying that job loses since Trump took office are over 500,000.

Donald Trump Fires Biden Appointee Behind Jobs Numbers After They're Revised Down - Newsweek
Source: newsweek.com
Key Evidence
The Bureau of Labor Statistics reported only 73,000 jobs added in July 2025 with a downward revision of 258,000 jobs for April and May combined.
bloomberg.combloomberg.comTrump Says He’ll Fire Labor Statistics Head After Weak Jobs Data
nytimes.comnytimes.comTrump Fires BLS Commissioner, Claiming Weak Jobs Numbers Were ‘Rigged’
Over 275,000 federal civil service layoffs have been announced under the Trump administration as of June 2025.
en.wikipedia.orgen.wikipedia.org2025 United States federal mass layoffs
American-born job growth surged by nearly two million in the last year despite declines among foreign-born workers.
foxbusiness.comfoxbusiness.comAmerican jobs boom as foreign-born jobs decline under Trump administration
What the Evidence Shows
Recent reports from credible sources including Bloomberg, The New York Times, and the Bureau of Labor Statistics indicate that the U.S. Economy added only 73,000 jobs in July 2025, with downward revisions totaling approximately 258,000 jobs for the prior two months. These revisions reflect weaker job growth than initially reported but do not directly translate into cumulative job losses exceeding 500,000 since President Donald Trump took office in January 2025.
Additionally, federal mass layoffs under the current administration have been significant, with over 275,000 federal civil service layoffs announced as of mid-2025; however, these figures do not encompass all sectors of the economy. Other data points show American-born job gains outpacing losses among immigrant workers, suggesting a complex labor market picture rather than a straightforward net loss of over half a million jobs.
Therefore, while there is evidence of economic challenges and some job losses in specific areas, the claim that total job losses since Trump’s inauguration exceed 500,000 is an overstatement or misinterpretation of available data.