(Portland, OR)  --  Organizers say hundreds of people gathered yesterday to protest President Trump's temporary ban on travel to the U.S. from seven Muslim-majority countries.  The non-profit group "Unite Oregon" organized yesterday's event at Terry Schrunk Plaza, with the theme "No ban, no wall."  Demonstrators called for the repeal of Trump's order, and voiced opposition to the Dakota Access Pipeline.  Police made a disorderly-conduct arrest of a 20-year-old who was seen at the protest site displaying a handgun, which turned out to be a replica.