“Democrats likely to gain control of Congress in US midterm elections as Senate lead expands”

Key points

• Democrats hold an 82% chance to win the Senate per Silver’s model.
• Forecasts show Democrats likely to control the House as well.
• Polls place Democrats ahead 9.4 points on the generic ballot.
• Results hinge on Tuesday’s midterm outcomes and vote timing.
• Various Senate races show Democratic leads in several key states.