(CNN) - Barack Obama and John McCain each hold slim leads in a key battleground state while the two are statistically tied in a third, according to a new set of Quinnipiac polls released Thursday morning and conducted entirely after the Republican convention.
Watch: Suburban battlegrounds up for grabs
Obama holds a narrow lead in Ohio (49-44 percent), a state hard-hit by the nation's economic woes but one that hasn't voted Democratic since 1996 and one no Republican has lost and gone on to win the presidency.
McCain, on the other hand, is on top in Florida (50-43 percent), the state that handed him a decisive primary win in January which ultimately led to his party's nomination.
Election Center: Check out CNN's electoral breakdown
Both candidates are in a statistical dead heat in Pennsylvania, the state Obama lost handily to Hillary Clinton in the Democratic primary but one that has narrowly voted Democratic in the last four presidential elections. The poll shows Obama on top 48-45 percent there, just inside the polls 3.1 percent margin of error.
Related: Michigan could go either way
All three surveys were conducted September 5-9 and come one day after the release of a set of surveys from CNN/Time/Opinion Research Corporation that showed tight races in four other battleground states: New Hampshire, Michigan, Virginia, and Missouri.
Those surveys showed slim advantages for Obama in New Hampshire and Michigan while McCain was narrowly on top in Virginia and Missouri.
Instead of applauding Sen. McCain for turning his campaign around and finally being in a tie or slightly leading Obama, shouldn't the media and voters look at what cost he has done this? He has run one of the most negative, demeaning, "Rove" campaigns in recent history even though he initially said he wanted to run an "honourable" campaign. He broke that promise too. The media has supported him gladly by posting his attention-getting negative ads (The One, Celebrity, Lipstick on a Pig, etc.) and giving him free air time. They are actually helping to "swift boat" Obama. So much for democracy. Do you wonder why everyone around the world has a curiosity about your concept of real "democracy"? People should be able to run and win on issues and honourable campaigns. Obama has had to go a bit negative just ot confront so many smears. How sad for your election system. Right now McCain can only get crowds and attention when an unknown, Gov. Palin, is with him. Doesn't that tell you something about the man in the top spot?
I vote the way Oprah does!
I cannot believe the things I am hearing on TV from these campaigns. Our service men our dying in Iraq & Afghanistan, people are loosing their homes and their jobs, companies are being bailed out and the talk is about lipstick on pigs! How pathetic! I was a McCain supporter, but not anymore. In Senator Obama I now see dignity,sincerity, and I see a man who should be President. He is trying desperately to stay on talk of issues, but the McCain camp keeps coming up with idiotic accusations that take the focus off the issues. They are doing this on purpose because they have NO ANSWERS to the issues. For God's sake Americans wake up and force them all to discuss the issues that effect us on a daily basis and that will affect our country. This is too important for nonesense.
GO JOHN/SARA 08
HILLARY 012 IF.. OTHERWISE, PALIN012
OBAMA 20024 – JUST FOR HIM TO HAVE EXPERIENCE
Take your witch Hillary and go home. We have won without you.