U.S. Secretary of State Marco Rubio is visiting Ecuador on the second leg of a three-nation tour of South America aimed at boosting security cooperation with conservative leaders.

Rightward shift in Latin America comes as Washington pledges to grow influence, take militaristic approach to cartels.

United States Secretary of State Marco Rubio on Tuesday arrived in Colombia following the recent election of hard-right lawyer and US ally President Abelardo de la Espriella, and…