Companies spent $5.6 million for 30 seconds of air time, but not all of them scored a touchdown, experts say. Source

For five decades, the snowy cornfields of Iowa have yielded a crop of future presidents. And many voters are proud they are the first in the nation to vote in the primary season. Ed O’Keefe reports on how the state became such an important part of the presidential race. Source

Iowa will kick off the 2020 primary election season Monday night. Democrats are in a tight race to be the nominee to face President Trump in November. CBS News chief Washington correspondent Major Garrett and special correspondent Alex Wagner join “CBS This Morning” to discuss the race. Source

In World View, a Syrian Army shelling kills at least four Turkish soldiers, drivers ignore an anti-pollution measure in Milan and U.K. Prime Minister Boris Johnson lays out his vision for a U.K.-EU trade deal. Cindy Pom joined CBSN AM from London with the round up. Source

Democrats in the Hawkeye State have a pretty good track record at predicting their party’s presidential nominee Source

“A moderate candidate’s going to do well,” said Laura Hubka, the chair of the Democratic Party in Howard County. Source

Eleven year old led a chorus of kids covering Gloria Estefan’s “Let’s Get Loud.” Source

The final season of Showtime’s hit TV series “Homeland” premieres this Sunday. For nearly a decade, actress Claire Danes has portrayed CIA agent Carrie Mathison. In the season premiere, Danes joins “CBS This Morning” to discuss the new season, which starts with her character suspected of being a double agent after spending more than 200 days in a Russian prison. Source

A suspect is in custody and there is no current indication of a motive, Bakersfield police said. Source

The first voting contest of 2020 Democratic primary campaign takes place today with the Iowa caucuses. The most recent polls show a tight race for the top spot. Source