Landmines is absurd.
For certain Republicans and/or conservatives, it is part of their "Hispanic voter outreach program," which constitutes their view of public relations, etc.
My cousin-in-law, Steven Fernandez, son of a career Air Force veteran, stated to me he was disappointed as a conservative Catholic to hear SOME Republicans disrespect him due to his surname, and the assumption he was an illegal immigrant.
He states his father's family dates to the early 1800s when California was a Spanish colony.
So reference to landmines is what Sen. Graham has in mind, when he states that Trump is like a wrecking ball for Republican chances.
But the dummkopf's shooting off their crazed mouths cannot or will not hear.