Recent polling issues could continue in Democratic primaries in part because progressives are more likely to enjoy taking surveys.
Related stories
School Bus Routes Under Threat in Some States Over Soaring Diesel Prices
Steph Curry Breaks Silence on Warriors Contract Extension
Trump's Greenland Deal Boosts US Drilling Opportunities
FIRST ON FOX: Rubio ramps up birth tourism crackdown hours before Xi touches down in US
Hackers Say They Stole Thousands of Sensitive F.B.I. Personnel Records
Giants Dealt Massive Blow as Jaxson Dart Set for Season-Ending Surgery