we begin this hour with day two of the president's first foreign trip. joining us now, chief foreign affairs correspondent andrea mitchell. she is in england near the site of the g7 summit. matt bradley is in england. and also with us is ravi agerwall. andrea, what message is president biden sending with today's announcement on selling vaccine doses with the rest of the world? >> reporter: he is trying to show there's american leadership, that america is contributing to covax, the global consortium for vaccine doses. he is striking a different pose, certainly, from donald trump, coming into a g7. trying to prove that america has humanitarian issues at heart,