Senators Batres and Monreal claim there's no division and no fracture in spite of mutual insults.

74% of Mexican Twitter users don't support mud-slinging campaigns between presidential candidates.

Dirty election campaigns darkened 2016 race.

Dirty war and mud-slinging threatens to darken 2018 election campaigns.

National Electoral Institute pleads with parties: please, no more dirty war campaigns!

Mud slinging prevails at local Human Rights Commission's elections.

Dirty tactics and mud slinging turn PRD's internal elections into a pigsty.

Electoral Institute sets rules for clean elections campaigns in Chihuahua.

PRI candidate denounces dirty tactics will prevail during campaigns for governor of Sinaloa.

Mud slinging between right-wingers Espino and Martínez hurts National Action Party's campaigns.