Complex sentence: Instead, in January 2008, the House effectively killed H.R.1585 by referring it to the Armed Services Committee and passing H.R.4986, a bill nearly identical to H.R.1585 but slightly modified to meet the President's objection, which subsequently became law.
Split into simpler sentences: Instead, in January 2008, the House effectively killed H.R.1585 by referring it to the Armed Services Committee. It then passed H.R.4986, a bill nearly identical to H.R.1585 but slightly modified to meet the President's objection, which subsequently became law.