randomliner.php

<?php

  namespace App\Http\Controllers;

  use App\Models\PoliticalParty;

  class RandomController extends Controller {
    /**
    * Gets candidates
    */
    public function getCandidates() {
      $party = PoliticalParty::find(1);
      $candidates = $party->candidates; // Returns a Laravel Collection
      foreach($candidates as $candidate) {
        // Do what you want with $candidate
      }
    }
  }