Washington, DC (LifeNews.com) -- New polling data both nationally and in two leading battleground states shows a very tight race between likely Republican nominee John McCain and pro-abortion Democrats Barack Obama and Hillary Clinton. The polls show a close race nationally and in Pennsylvania and Michigan, two key states.

A new Rasmussen daily presidential tracking poll released Thursday has McCain tied with both Obama and Clinton at 44 percent apiece and 12 percent of Americans undecided.

A new survey released Thursday from NBC and the Wall St. Journal shows the race within the margin of error in both potential matchups.

Against Obama, McCain is behind by just three percent, 47-44, and McCain trails Clinton by just two percent, 47-45.

Those two polls support a Gallup survey released on Wednesday that has Clinton leading McCain by two percent, 47-45, and Obama leading McCain by two percent, 46-44. They also correspond well with a Saturday Newsweek poll showing Clinton leading 48-46 and Obama ahead 46-45 percent.

Looking at the polls in Pennsylvania, a Thursday survey by the Strategic Vision polling firm finds McCain leading Clinton by a 48-42 percentage point margin and ahead of Obama 47-44.

Rasmussen has the race closer with McCain ahead of Clinton 46-44 and ahead of Obama 46-43 while a Susquehanna poll shows McCain leading Obama 45-41 but trailing Clinton 47-44.

In Michigan, Rasmussen has McCain leading Obama 44-41 and ahead of Clinton 46-43.

Should McCain go on to win both states, which went for John Kerry in 2004 and Al Gore in 2000, the victories would make it very likely he would win the presidency as long as he can hold on the traditional Republican base in southern and western states.