(Eugene, OR)  --  Presumed Republican presidential nominee Donald Trump is slated to make a campaign stop in Oregon tonight.  The real-estate magnate is set to hold an event at the Lane County Fairgrounds in Eugene at seven o'clock.  An event that had been scheduled in Vancouver was cancelled.  Trump will appear at noon tomorrow at the Spokane Convention Center, then is scheduled to hold a rally at three o'clock tomorrow afternoon at the Northwest Washington Fair and Event Center in Lynden.