The 2016 PNP Primary for PR's 1st house district, a contest between Incumbent Nuno López and ex-Municipal municipal worker and legislative aide Eddie Charbonier resulted in a close win for Charbonier as he ousted López durring one of the bloddiest Primary seasons in Puerto Rico.
Three things likely contributed to Nuno López's loss, the first one was a general anti-incumbent mood which made residents turn sour on the three term representative, the second one was his support for Dr. Ricky Rosselló over Resident Commissioner Pedro Pierluisi (This seat voted for Pierluisi),
and the Third and most significant one was him being confined to a hospital for 7 months. Whatever the case, these factors contributed to his loss, and allowed Charbonier—who ran for the San Juan I Senate seat in 2012, and part of 2016—to become the representative for PR's 1st HD.