(WTTW News)

Chicago buckles down for this weekend’s NASCAR race. City residents choke down the world’s worst air quality. The president visits Chicago amid a major week of Supreme Court rulings. And Connor Bedard becomes a Hawk.

The long-awaited Red Line extension and Chicago casino take major leaps forward. Is the Jane Byrne interchange finally finished? And García and Lightfoot attacked for ties to Sam Bankman-Fried.