Obama's day: Down to Mexico

President Obama begins a weekend foreign policy trip to Mexico and Costa Rica on Thursday.

Obama first flies to Mexico City for a meeting with Mexico President Enrique Pena Nieto.

Among the topics: Immigration, the economy, drug wars, and border security.

Later, the president meets with U.S. Embassy personnel in Mexico City, and participates in a joint news conference with Pena Nieto.

The evening brings a "working dinner" with Obama and Pena Nieto, the White House says.

Obama's three-day trip also includes a visit to Costa Rica for a meeting with Central American leaders.