Al Qaeda committed attacks in Madrid. Explosives were installed on four trains and 193 people died, the most serious attack in Spanish history. Three days of Spanish elections, all the surveys indicated that José María Aznar’s PP would win again. At first they attributed the authorship to ETA, but even though it declined over the hours, the PP kept the lie, as behind the attacks was the government's participation in the Iraq war. The PP finally lost the elections.