Let's talk more about where Rick Santorum stands and about his rivals, with NPR's national political correspondent Mara Liasson. Good morning.
MARA LIASSON, BYLINE: Good morning, Renee.
MONTAGNE: Now, we just heard from Sonari that Rick Santorum has surged in Michigan, and that would be, of course, Mitt Romney's native state. And that is one that Romney really cannot afford to lose. So what is he doing to stop Santorum, as of today, and what's it looking like?
This is Morning Edition from NPR News. I'm Renee Montagne.
Senegal, on the coast of West Africa, has been something of a model of stability for a region known for its volatility. But this past week has brought protests and violence to Senegal after demonstrations over a presidential election this coming weekend led to clashes with riot police. We've got NPR's Ofeibea Quist-Arcton on the line from the capital Dakar to tell us what is going on there.