the gist of the matter is that Rubio’s parents saw the handwriting on the wall and fled Cuba a couple of years before Castro actually took over and became residents of the US. Rubio had made some statements about his parents being refugees from the Castro takeover so they are saying these were lies. As we all know Rubio was not even a glimmer at that point being born in the US his parents having become citizens in the meantime. The embellishments if any were likely Rubio’s parents explaining to a child why they had to leave their home and come to the US.
It seems, they are saying he has lied about when his parents came to the united states, it seems they came here before Castro took over. If that is the truth a whole big can of worms has been opened