I grew up in Mexico--spending a few years in or near Puerto Vallarta, specifically, funnily enough--and the M.O. of the cartel is overwhelmingly geared towards keeping a VERY low profile. Their whole purpose is to be quiet and subtle.
For every "loud" cartel action in MX, there are twenty that you never see, and then ten that exist as different recyclings and exaggerations and attack ads in the US to (now) perpetuate the current administration's favorite scapegoat, or (then) to prevent people from emigrating from the US.
It's been like that since '07 or so: take a story from Ciudad Juárez or Tamaulipas, then magnify it and convince Americans that the entire country is like that, so that they don't pay attention to the fact that they could get cheaper healthcare, out of pocket, by driving across the border to an equally well-equipped hospital... than they would for the cost of a single ambulance ride in the States... while living in a house that cost 10-100 times more than a house of the same size and quality across the border. All the while, the cartel hums happily along, truly wanting absolutely nothing to do with you.
Fear sells, and fear controls. Just like whatever series of headlines got you wanting to believe that they've infiltrated the American govt. ;)
Not much if at all at the national level. US government is infiltrated by other harmful entities, drug trafficking can't compete with MIC, Big Oil, Sugar, Pharma, government contractors etc
Cartels are the largest non-state owned business operations in Mexico.
