A health emergency is in effect as skies over New York are shrouded with heavy, toxic smoke. Millions of Americans are at risk as wildfires in Canada create an air-quality crisis in the United States. Plus, Mike Pence is taking on Trump as he officially launches his 2024 bid for the White House. Pence is preparing to answer questions from Iowa voters at a live CNN town hall event later tonight. 

A health emergency is in effect as skies over New York are shrouded with heavy, toxic smoke. Millions of Americans are at risk as wildfires in Canada create an air-quality crisis in the United States. Plus, Mike Pence is taking on Trump as he officially launches his 2024 bid for the White House. Pence is preparing to answer questions from Iowa voters at a live CNN town hall event later tonight.

The Situation Room with Wolf Blitzer: The command center for breaking news, politics and extraordinary reports from around the world. The Situation Room airs weekdays 6p-7p Eastern, Monday through Friday on CNN.  Visit CNN.com/TheSituationRoom.

The Situation Room with Wolf Blitzer: The command center for breaking news, politics and extraordinary reports from around the world. The Situation Room airs weekdays 6p-7p Eastern, Monday through Friday on CNN.&nbsp; Visit CNN.com/TheSituationRoom.

The Situation Room with Wolf Blitzer

The command center for breaking news, politics and extraordinary reports from around the world. The Situation Room airs weekdays 6p-7p Eastern, Monday through Friday on CNN.  Visit CNN.com/TheSituationRoom.

The command center for breaking news, politics and extraordinary reports from around the world. The Situation Room airs weekdays 6p-7p Eastern, Monday through Friday on CNN.&nbsp; Visit CNN.com/TheSituationRoom.

Advertisement