debt ceiling bill now in law, watch the debate and see what you're elected officials at and how they inally voted, with c-span's congressional chronicle, a video of each session, and when members return, follow more of the appropriations process. >> this evening, a debate from ralph nader and the study for response of all at 6:00 eastern on whether there should be a financial transaction tax. such a tax would be on trades from stocks, derivatives, and other instruments. later, senior retired military officers participate in a simulated destruction of the global oil supply. among those participating, stephen hadley, and former director of national intelligence dennis blair. this is part of the national summit on energy security at 8:00 p.m. eastern >> republican candidate some are gathering in iowa for a grass- roots politics, state fair festivities, starting thursday. we will interview candidates and take your phone calls. saturday, we will go to ames for the straw poll. road to the white house in iowa, this week on c-span. >> arne duncan speaking at a conference today, maintaining conditio