Run Into The Ground Meaning

(transitive, idiomatic) To discuss ad nauseam.

Example:   Although he has an MBA from Harvard, he still ran the company into the ground.
  I figure this car has a few more years left in it and I intend to run it into the ground before purchasing another.
2011 January 5, Jonathan Stevenson, “Arsenal 0 - 0 Man City”[1], BBC:
  City sent on Adam Johnson for the ineffective Jo and the Englishman at least gave notice that he wanted to run at the Arsenal defence, but his team-mates had been run into the ground by then and no-one could get up in support of the winger.
  You've run the upcoming election into the ground and I simply won't listen to another word about it.