It typically takes a lot for me to fully support the primarying of a Democratic opponent, but I wholeheartedly endorse Newman and am glad Gillibrand would be bold enough to do so as well. Litmus-testing is not a concept I typically see favorably, but a pro-life anti-ACA Democrat is hardly a Democrat, and this district is not like WV where you need to accept the moderate Democratic incumbent so that a conservative Republican isn't elected instead; it's D+6.
There are lots of pro-life and even anti-ACA Democrats. Mostly in the South, but still - they exist in good numbers.