Analyst says timing of resignations linked to Mexican midterm elections in July . He also said the government is considering a new law that would allow it to seize assets from companies with ties to organized crime and drug cartels if they are found guilty of violating human rights or environmental Key official for ministry that oversees Mexico 's government leaves .
Analyst says timing of resignations linked to Mexican midterm elections in July . Communications and transport secretary resigns amid controversy over comments . Key official for ministry that oversees Mexico 's government leaves .