He has also had to govern in a persistently difficult environment : a lame - duck president next door in the United ~ States , a severe economic downturn , and the legacy of corruption , negligence , and complicity handed down by his predecessors since 1968 , when Mexico 's old one - party political system began to crumble .
He has also had to govern in a persistently difficult environment : a lame - duck president next door in the United ~ States , a severe economic downturn , and the legacy of corruption , negligence , and complicity inherited from his predecessors since 1968 , when Mexico 's old one - party political system began to crumble .