WASHINGTON -- The veritable fire hose of data turned on in the final days of the 2012 campaign leaves little doubt that while the national popular vote remains too close to call, President Barack Obama holds slim but meaningful leads over Republican nominee Mitt Romney in the battleground states that will likely decide the presidential election.With just three days remaining before votes are counted, most of the national tracking polls continue to show a basically deadlocked race, with six new surveys released in the last 24 hours showing roughly the same findings as those from earlier in the week.Read More... More on Elections 2012