A positive PCR test could be a false positive (those tests are really sensitive, especially the ones in the US). Or it could be a true positive, but since it only tests for the presence of the SARS-CoV2 virus, Trump might not actually be infected. Third possibility, he could be infected but asymptomatic.
But do I think he's lying about a positive test? Absolutely not.
It is possible for both things to be true.
A positive PCR test could be a false positive (those tests are really sensitive, especially the ones in the US). Or it could be a true positive, but since it only tests for the presence of the SARS-CoV2 virus, Trump might not actually be infected. Third possibility, he could be infected but asymptomatic.
But do I think he's lying about a positive test? Absolutely not.