Tens of thousands of frustrated teachers will air their grievances at protests across Oregon -- they're fed up with overcrowded classrooms and a lack of support staff https://t.co/UzOZysM1cm

Tens of thousands of frustrated teachers will air their grievances at protests across Oregon -- they're fed up with overcrowded classrooms and a lack of support staff https://t.co/UzOZysM1cm (via Twitter http://twitter.com/CNN/status/1126009030156201984)