A movement to extradite fugitive bombmaker William Morales from Cuba is gaining momentum 40 years after the deadly terrorist blast at historic Fraunces Tavern in the Financial District.

Some Republican lawmakers have pushed for Morales and about 70 other suspected criminals living in Cuba to be returned for trial in the wake of the Obama administration’s plans to normalize relations with the Castro regime.

On Friday, three GOP senators — David Vitter of Louisiana, Marco Rubio of Florida and Ted Cruz of Texas — issued a letter to Attorney General Eric Holder questioning the legality of the administration’s normalization despite Cuba’s harboring of fugitives.