(Portland, OR)  --  Former Vice President Joe Biden is headed to Portland this week.  Biden is scheduled to make an appearance Thursday at the Arlene Schnitzer Concert Hall to promote his new book "Promise Me, Dad: A Year of Hope, Hardship, and Purpose."  The appearance is part of his 19-stop "American Promise Tour."  Biden will take the stage at 7:30 p.m., and tickets have sold out.