The big unknown behind Democrats' polling leads

Recent polls suggest a significant lead for Democratic candidates, raising concerns among Republicans about a potential blue wave. However, some experts are questioning the accuracy of these polls, particularly when it comes to capturing the views of Trump supporters, which has historically been tricky. The stakes are high, as a small polling error could shift control of Congress and both chambers of the government from Republicans to Democrats. This uncertainty underscores the complexities and potential pitfalls in modern polling methodologies.