Question: who is the president in london has fallen
Answer: Secret Service Director Lynne Jacobs ( Angela Bassett ) assigns agent Mike Banning ( Gerard Butler ) , a close friend of US President Benjamin Asher ( Aaron Eckhart ) , to lead Asher 's security detail while overseas , even though Banning 's wife Leah ( Radha Mitchell ) is due to give birth to their child in a few weeks .