Is there anything else that he has done? Also, Fauci did not say the travel ban alone saved 2 million, it was also the lockdowns by the States (which Trump largely opposed). See link from conservative CATO institute.
Why do you think that we are now the epicenter of the virus and have much worse case, hospitalization and death rates per capita of any developed country?
Link: https://www.cato.org/blog/did-mitigation-save-two-million-lives