In your first post Ohiodad you mentioned you drink with her. That is sending out the wrong signal to her. If you consider her drinking to be a problem and a risk to your child, and a threat to your marriage, I would suggest that you stop drinking, completely, with her for a period of time. And tell her you want her to stop drinking completely, anytime, anyplace, any reason. Period. Stop. total sobriety.
Half measures avail the alcoholic nothing.
I am a recovered alcoholic wife and total sobriety was the only solution.