Bill & Melinda Gates Foundation
There's no money for a border wall.
The Gates Foundation says responding to deadly outbreaks isn't its forte. But the Ebola crisis showed just how much global public health depends on the foundation.
WHAT'S HAPPENING
The best investment any of us can ever make is in the lives of others. As we explain to Warren in our letter, the returns are tremendous.
Malaria still kills a child in Africa every few minutes.
And here are 10 ideas he has to go about it all.