Fighting in Syria continued, despite a ceasefire deal maded between the U.S. and Turkey. Meanwhile, Kurdish children may be victims of a possible chemical attack. Charlie D’Agata reports from Iraq. Source

Ahead of tonight’s Democratic presidential debate in Ohio, CBS News 2020 campaign reporters Bo Erickson, Cara Korte and Zak Hudak joined CBSN to discuss frontrunners Elizabeth Warren, Joe Biden and Bernie Sanders. Source

President Trump welcomed the 2019 Stanley Cup champions, the St. Louis Blues, to the White House on Tuesday. Mr. Trump spoke at the event, which was held in the Rose Garden. Source

Twelve candidates will take the stage tonight for the 4th Democratic presidential debate. CBSN political reporter Caitlin Huey-Burns joined CBSN from the site of the debate in Westerville, Ohio. Source

WBNS reporter, anchor and “Face the State” host Scott Light joins CBSN to discuss the issues that are crucial to Ohio voters as Democratic candidates prepare to debate tonight in Westerville, Ohio. Source

Security experts are raising concerns about popular key-copying kiosks that can duplicate electronic access cards and key fobs. CBS News Radio executive editor and correspondent Steve Dorsey joined CBSN with details of his investigation. Source

Security was tight as Prince William and his wife Catherine, Duchess of Cambridge, began their official visit to Pakistan. They visited with Prime Minister Imran Khan, an old friend of William’s late mother, Princess Diana. CBS News’ Cindy Pom reports. Source

Superintendent Eddie Johnson​ told reporters he felt he might faint as he was driving home from dinner, so he pulled over to rest not far from his home Source

During a news conference Tuesday, Fort Worth interim police chief Ed Kraus vowed that the officer who fatally shot a black woman in her home will be held accountable. Aaron Dean is charged with murder in the death of Atatiana Jefferson. Source

A football player at Samford University in Alabama wanted to honor his stepdad, who has always been there for him. So he legally changed his last name – then surprised his parents by showing them the back of his football jersey. Source