Bernie Sanders just escalated his war of words with Amazon.
Sanders said he would call on the OSHA to investigate "unsafe working conditions" in the company's warehouses. The statement is in a response to an Amazon blog post critical of Sanders' criticisms of the company.
Sanders cites an April report from the National Council for OSHA that found seven Amazon warehouse workers died on the job in Amazon's warehouses since 2013. Three of the workers died within five weeks of each other in 2017.
In a statement to Business Insider in April, Amazon defended its workplace safety record. Amazon also said that it takes "any serious incident" seriously, and is working to improve.
