Bush came within 1% in 2000, though Nader played a role with that finish.
In 2004, Bush came within 5%, securing 866,000 votes (just 100,000 less than Obama's vote total here in 2012).
These numbers indicate some possibility of Oregon's becoming competitive in the future. It can flip in 2008-esque year in the GOP's favor.
Oregon is 8 percent more democratic then the nation so that requires the gop to win at least 54% of the popular vote to break even in oregon , and 54.5% to win Oregon so they need more like a Clinton 1996 margin or maybe even a Reagan 1980 to win Oregon