Police on Thursday designated Gannon Stauch an endangered missing child. Source

CBS News is estimating a four-way race between Joe Biden, Bernie Sanders, Elizabeth Warren and Pete Buttigieg as voters’ initial preference. Source

After two days of delays, SpaceX finally launched a Falcon 9 rocket Wednesday carrying a fourth batch of 60 Starlink internet relay satellites, part of what will be a globe-spanning constellation of broadband beacons. Watch the launch. Source

Democratic Party leaders in Iowa are preparing for the possibility of record turnout at this year’s caucuses. CBS News political reporter Caitlin Huey-Burns joins CBSN with a look at how Democrats in the state are feeling ahead of the first-in-the-nation contest. Source

CBS News spoke to four women who will each caucus for a Democrat in Iowa. Source

CBS News correspondent Seth Doane traveled to the Palestinian city of Ramallah to get reaction to President Trump’s Middle East peace plan. Palestinians oppose the deal, but Seth found reaction on the streets to be muted. Source

President Trump dispatched 80 surrogates to Iowa as the state holds its first-in-the-nation caucuses. Trump campaign director of strategic communications Marc Lotter joins CBSN from Des Moines to discuss the campaign’s focus on Iowa. Source

The Senate heard closing arguments in the impeachment trial of President Trump. It comes ahead of an expected vote to acquit the president of all charges. Nancy Cordes has the latest. Source

After the impeachment trial wrapped up for the day in Washington, Senator Bernie Sanders raced to Iowa for the caucus. He entered the 2020 race with a strong base of supporters and has seen a boost in recent polls. Ed O’Keefe has the latest. Source

Health officials in China are reporting more deaths from coronavirus. The World Health Organization is warning the outbreak could soon be large enough to be classified as a pandemic. Mola Lenghi reports. Source