Lester Holt, Kristen Welker, and Hugh Hewitt moderate the NBC News Republican Presidential Debate where topics include America's problems, supporting Ukraine, increasing naval capacity to deter Chinese aggression, China's influence and foreign infiltration, energy independence, Social Security for seniors, combating fentanyl, and views on abortion.

As Dateline launches its 30th season, Lester Holt joins correspondents Andrea Canning, Josh Mankiewicz, Natalie Morales, Keith Morrison and Dennis Murphy for a revealing, lively and thoughtful conversation about some of their most memorable stories and experiences.