NEW:

I've obtained fresh data on Nixon's impeachment from four Gallup polls in 1973 and 1974.

It turns out the shift among independents was *massive.*

This suggests opinion could shift now.

You will find these numbers interesting. Check them out here:
https://t.co/fPVdLYJCpO

— Greg Sargent (@GregTSargent) June 3, 2019