POLITICO Get the Prescription Pulse newsletter Email Sign Up By signing up you agree to receive email newsletters or updates from POLITICO and you agree to our privacy policy and terms of service. You can unsubscribe at any time and you can contact us here. This sign-up form is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. With Katherine Ellen Foley, Rachel Roubein and Emily Martin. On Tap — The U.S. will send about 75 percent of its next batch of Covid shot donations to COVAX, with the rest going directly to allies and priority regions.