Lindsey Reiser reports on the investigation into a fatal school shooting in Wisconsin, the biggest takeaways from President-elect Trump’s first post-election press conference, and the top health stories that defined 2024.

President-elect Donald Trump held his first post-election news conference Monday. While speaking to reporters at his Mar-a-Lago estate in Florida, Trump addressed a range of issues including his Cabinet picks, foreign policy and trade. CBS News chief Washington correspondent Major Garrett has the details.

2024 was a year of historic health headlines. From Ozempic to E. coli, CBS News medical contributor Dr. Céline Gounder joins to look back at the medical stories that defined the year.