Penn State University professor of biology and infectious diseases Dr. Matt Ferrari explains why a difference of a few points in the vaccination rate can greatly increase the risk of a measles outbreak. Source

Multiple measles outbreaks have sickened people in the U.S. recently, including in Philadelphia and Washington state. Experts agree that measles can easily spread among unvaccinated people. National investigative correspondent Stephen Stock explains why so many in the United States may be at risk. Source

The U.S. is weighing retaliatory measures following an attack on troops in Jordan. CBS Evening News anchor and managing editor Norah O’Donnell reports from Bahrain. Then, CBS News national security correspondent David Martin joins to discuss how the U.S. could respond. Source

The drone strike that killed three U.S. troops in Jordan on Sunday is still under investigation, but the Pentagon says Iran “has their fingerprints” all over it. Retired Gen. Joseph Votel, former commander of U.S. Central Command, joins CBS News to assess the situation. Source

Nikki Haley is hitting back at Donald Trump on the campaign trail, saying the former president is guaranteed to lose in the general election. CBS News chief Washington correspondent Major Garrett joins to assess the state of Haley’s campaign nearly one week after losing in New Hampshire. Source

Senate negotiators are preparing the final text of what could be the most consequential immigration legislation in nearly 40 years. CBS News chief White House correspondent Nancy Cordes has the details. Source

A judge has rejected convicted murderer Alex Murdaugh’s request for a new trial. Murdaugh and his lawyers alleged a court clerk improperly influenced the jury when he was convicted of killing his wife and one of his sons. Nikki Battiste has the latest. Source

House Republicans are rallying against a bipartisan Senate plan on immigration reform that is still being finalized. The bill would allow the president to deport most migrants seeking asylum whenever illegal border crossings surge. Nancy Cordes reports. Source

More than three months into the war, much of the fighting in Gaza has become centered around the southern city of Khan Younis. Charlie D’Agata was given a look at the outskirts of the city while embedded with the Israel Defense Forces. Source

Troops stationed at a U.S. Navy base in Bahrain are tasked with protecting American assets and interests in the waters of the Middle East, including the Red Sea, where Houthi rebels have launched several attacks on shipping vessels since the start of the Israel-Hamas war. “CBS Evening News” anchor and managing editor Norah O’Donnell was given an exclusive look inside the secret operations center. Source