A month's worth of national Dem presidential primary polls, graphed

Clinton starts to put some room between herself and Sanders

Source:  Real Clear Politics

Related reading:

CNN poll: Americans agree Clinton and Trump headed for a faceoff.  (CNN, 5/2/2016)

Recent related posts:
A month's worth of national GOP presidential primary polls, graphed.  (5/2/2016)
A month's worth of national presidential polls, graphed.  (5/2/2016)
A month's worth of national presidential primary polls, graphed. (4/26/2016)
Trump gets some breathing room in latest GOP presidential primary poll.  (4/14/2016)
GOP presidential candidates continue to float along in March national polls.  (4/6/2016)
No change in GOP Presidential race according to Pew Research poll.  (3/31/20160
Trump approaches, then recedes from 50% level in this month's national Presidential primary polls,  (3/30/2016)
#DumpTrump movement having no impact yet on national polls.  (3/22/2016)
Trump treads water while Cruz, Kasich gain in national polls.  (3/16/2016)
Dear Cameron, About Cruz closing the poll gap, it's a happening thing.  (3/8/2016)
So much for #NeverTrump if CNN has its way.  (2/29/2016)
How often do Republicans wake up in the night screaming, "Is this the best we can do?"  (2/23/2016)
Who's the outlier? In one day, Trump goes from +20 to -2, behind Cruz, in national polls.  (2/17/2016)
Rubio can't maintain momentum in latest national Presidential primary poll.  (2/5/2016)