Former President Obama speaks at the Obama Foundation Summit in Chicago in October. Photo: Scott Olson/Getty Images
Why it matters: Puerto Rico's governor declared a state of emergency last Tuesday. President Trump has approved a federal disaster declaration request after two earthquakes measuring magnitudes of 6.4 and 5.8 struck — displacing many people and leaving much of the island without power. Aftershocks have since hit, and there was a magnitude 5.2 quake Friday.