https://www.theguardian.com/world/2017/dec/04/mexican-presidential-candidate-pitches-amnesty-deal-for-drug-cartel-kingpins Please develop a summary...

https://www.theguardian.com/world/2017/dec/04/mexican-presidential-candidate-pitches-amnesty-deal-for-drug-cartel-kingpins

Please develop a summary and commentary on this news article. It should briefly describe what the story is about and offer some analysis on its overall political significance, focusing mostly on Iran. It should be a couple of paragraphs long, thank you.