What to know about President Biden's rare, primetime speech outlining his concerns for the future of the nation and why top Republican leaders are especially upset about it.
Also, new national test results show how the pandemic impacted kids' learning.
Plus, what to expect if you're traveling this Labor Day weekend, what's perhaps the biggest, most anticipated change to Twitter in years, and historic ticket prices: it could now cost you an average American's yearly salary to see one of Serena Williams' final matches.