Democratic presidential candidate Hillary Clinton won the Iowa caucuses by four delegates, but Bernie Sanders has not yet conceded. An average of recent New Hampshire polls gives Sanders an 18-point lead. Sanders joins “CBS This Morning” from Burlington, Vermont, to discuss the results of the Iowa caucuses and his campaign. Source

Ryan Murphy, a Denver Broncos safety, has been dismissed from Super Bowl 50 after he was questioned in a prostitution sting. Investigators spoke to Murphy Tuesday, but he was not charged. The team sent him home to avoid distractions. Jeff Glor reports from Super Bowl City in downtown San Francisco. Source

As the majority of school districts in the country are reopening, Anthony Mason follows up with four public high school teachers he first spoke to last summer. Pedro Hernandez, Sheena Graham, Emily Krieger and Matt Baker discuss student and teacher mental health, dealing with trauma, schools reopening and standardized testing. Source

Robin Hood Foundation CEO Wes Moore, co-author of the book “Five Days,” joins “CBS This Morning” to discuss the violent police encounter of Daunte Wright, and comparisons to the events surrounding the death of Freddie Gray in Baltimore. Source

The comedian opens up on diabetic nerve pain, the possibility of a Kings of Comedy tour and his hair expertise. Source

Evans, an 18-year veteran of the Capitol Police force, died April 2 after a man rammed his vehicle into officers stationed at a barricade outside the Capitol. Source

Singer Adele has one message for GOP frontrunner Donald Trump: Stop using my music at your rallies. CBSN’s Contessa Brewer has more. Source

Bernie Sanders is leading three points over Hillary Clinton ahead of the Iowa caucuses. Sanders’ biggest concern tonight is voter turnout. Sander’s campaign manager, Jeff Weaver, joins CBSN with more. Source

Staff at the Kentucky juvenile detention center where Gynnya McMillen was found unresponsive waited 11 minutes before starting CPR on the teen. CBSN’s Contessa Brewer explains the new findings. Source

Bernie Sanders is optimistic that he’ll take the win from Hillary Clinton during the Iowa caucuses. CBS News congressional correspondent Nancy Cordes spoke with him hours ahead of the showdown in Iowa. Source