National Post: The benches of the House of Commons are going to get a little more cramped in four years. On Tuesday evening, the federal government pushed through legislation adding 30 MPs to Parliament Hill, increasing the number of MPs to 338 from 308 and bringing with them millions of dollars in costs to taxpayers. By a vote of 154 to 131, the Conservatives pushed through the increase, inscribed in the Fair Representation Act, that will give Ontario, B.C., Alberta and Quebec more elected voices in the House of Commons. The bill now heads to the Senate for approval.