This map shows how Oregon House District representation has changed between 2002 and 2008.
Republicans have tended to lose districts in the suburbs of Portland.
The House District boundaries were redrawn in 2001 and have not changed since.
Color coding of map:
Red: Republican from 2002 through 2008.
Blue: Democratic from 2002 through 2008.
Yellow: Changed from Republican to Democratic in 2004, 2006, or 2008.
Source of data: Oregon Secretary of State.