Name the election for the percent of popular vote being 4.48%
CREATE TABLE "federal_election_results" (
  "election" real,
  "num_of_candidates_nominated" real,
  "num_of_seats_won" real,
  "num_of_total_votes" real,
  "pct_of_popular_vote" text
);
SELECT "election" FROM "federal_election_results" WHERE "pct_of_popular_vote"='4.48%';