
Nate Cohn @Nate_Cohn
The USC 7-day tracker has some serious periodicity biases, so it's often hard to clearly interpret the trendline. But this one can't be mistaken: Biden up by his widest margin yet, and up 4 pts over 14 days ago (probably the most comparable sample) https://t.co/XBPcqNqgCT — PolitiTweet.org