AUGUSTA, Maine — A week and a half of tension that began to mount last week with the release of an A-through-F grading system for public schools culminated Friday evening with Education Commissioner Stephen Bowen attacking Senate President Justin Alfond for delaying action on a sweeping teacher evaluation plan that has been under development for more than a year.

Alfond freely admitted he held the measure up because he and other Democratic leaders wanted to see what education initiatives Bowen and Gov. Paul LePage would unveil late in the legislative session on the heels of what Alfond called months of secrecy around destructive education initiatives by the administration.

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