It was the first time the conservative Tribune had endorsed a Democratic presidential nominee; but the paper expressed its confidence in Obama, saying it has, "tremendous confidence in his intellectual rigor, his moral compass and his ability to make sound, thoughtful, careful decisions."
The Post said Obama "has a sophisticated understanding of the world and America's place in it."
The Post cited Republican presidential nominee Sen. John McCain's selection of Alaska Gov. Sarah Palin as a running mate as one reason why the paper chose to endorse Obama. The Tribune agreed saying, "McCain failed in his most important executive decision."
On Friday, Obama was also endorsed by the Los Angeles Times and the San Francisco Chronicle.