The Trump-Harris debate could prove to be the most important 90 minutes of the race

This is Washington Edition, the newsletter about money, power and politics in the nation’s capital. Today, Bloomberg Businessweek national correspondent Joshua Green explains why the Trump-Harris presidential debate is a defining moment, especially for the vice president. Sign up here and follow us on @bpolitiek. Send an email to our editors here.

The prevailing view among political scientists is that debates do not make much difference to the outcome of an election. It may be time to update the literature.