Biden falsely says Trump administration rejected WHO coronavirus test kits (that were never offered)

https://www.politifact.com/factchecks/2020/mar/16/joe-biden/biden-falsely-says-trump-administration-rejected-w/

• The WHO never offered to sell test kits to the United States.
• The CDC opted to develop its own coronavirus test and did not use the WHO’s protocol for the test. 
  
• Other developed countries with advanced research capabilities developed their own tests.
   
  Biden said, "The World Health Organization offered, offered the testing kits that they have available and to give it to us now. We refused them. We did not want to buy them." 
  Biden has a point that the U.S. did not attempt to use the WHO test. But the U.S. would never have needed complete kits from WHO. Even if it had adopted the WHO testing approach, it already had access to all the necessary materials. 
  WHO said there was never any talk of WHO sending testing kits to the United States.
  Biden’s words leave out other important context and information. 
  The U.S. chose to use its own test, rather than the one circulated by WHO. Other nations, such as China, Japan and France, also developed their own tests. Multiple public health experts said that is not unusual. 
  Biden’s emphasis on WHO offering kits is simply wrong. We rate this claim Mostly False.