The CTA is adding more Blue and Green Line train service for the Democratic National Convention, the agency said on Tuesday. The CTA is running extra Green and Blue Line trains after the DNC, as well as more Green Line trains before the event. Travelers will see additional Blue Line service through the rest of the week. The announcement comes after train trackers showed scheduled trains running as long as 27 minutes apart shortly after the convention concluded Monday, though the CTA said the wait times were, in reality, lower.