The meeting between the two first women heads of state in their respective countries also was the first official meeting between the countries since the 1970s.
The Penal Branch of the Supreme Court ordered the raid as part of investigations into allegations that the evangelical lawmaker used his public office to conduct private business.
Talks about building a new airport in Costa Rica's Southern Zone have gone on for nearly a decade. Officials now may be getting closer to a deal. Meanwhile, at least one lawmaker wants to build another airport in the Northern Zone.
A crucial test for Peña Nieto might come as soon as mid-October, with lawmakers expected to vote in the coming weeks on his bid to rewrite energy laws and jolt the sagging national oil company, Pemex.
