Why did the director of the CDC override her agency's advisory panel and rule in favor of COVID-19 booster shots? And what do lawmakers hope to learn from former Trump aides they have subpoenaed? Plus, President Biden meets with the leaders of India, Japan and Australia today. How can they push back against China, a major trading partner?

Who is eligible to get Pfizer's COVID-19 booster shots? And why are certain Haitian migrants detained along the US-Mexico border being released while others are deported? Plus, new documents reveal the extent of Ethiopia's hunger crisis.

Will the winter season prompt another COVID surge? And how are U.S. border agents managing the thousands of migrants camping under a border bridge? Plus, an investigation into Hurricane Ida's power collapse.

President Biden will address the United Nations General Assembly today. How will he explain America's role in the world? And why are anti-abortion rights activists upset about a lawsuit against an abortion provider? Plus, the showdown between Democrats and Republicans over the debt ceiling.

What are the most urgent issues world leaders will tackle at the U.N. General Assembly this year? And why did a Senate parliamentarian, the referee of Senate rules, knock immigration out of a budget bill? Plus, revelations from a new book about former President Donald Trump.