The House of Reps has been frozen since 1929 with the Reapportionment Act, we were originally suppose to add new electors/reps with every census and sometimes sooner if population change is fast enough. It is also the reason why some small states have slightly more power in the House of Reps, the lack of new Reps has made their fair share of Reps drop below the minimum number of Reps. With more Reps overall, their share rises and surpasses the minimum number, fixing that particular problem.