Oregon Senator Ron Wyden will hold a town hall in The Dalles later this month.  It will take place on April 23 at 1 p.m. at The Dalles High School.  It will kick off a swing of seven town hall appearances in four days for Wyden.  He will also go to Umatilla, Grant, Harney, Lake, Klamath and Douglas counties. Wyden’s office says he has held 1,100 open-to-all town halls during his Senate tenure, one each year in each of the state’s 36 counties.  Doors will open one hour before the town hall start times for attendees.  Backpacks and large bags will not be allowed in the town hall for security reasons.