This once was, ironically, about the most reliably West Coast Republican district for a century... right up until the Watergate election of 1974. If we could get better district lines in Oregon (nevermind candidates), we could get 4 out of the 5 seats (all but central Portland). We’ve been underrepresented for almost 40 years in House seats in that state.
If my memory is correct, the last Republican Congressman there was not considered a conservative.