At least a dozen race horses died in the days leading up to last year’s Kentucky Derby. Since then, the industry says it’s made major improvements not just at Churchill Downs, but at tracks across the U.S. Lisa Lazarus, CEO of the Horseracing Integrity and Safety Authority, tells “On Balance” there is now a uniform anti-doping protocol nationwide, veterinarian practices have been “optimized,” and they’re working to change the culture in the paddock.

Bereaved Mother's Day is a day to honor mothers who have lost a child or pregnancy. According to the CDC, there are more than 21,000 stillbirths each year in the US. While not every stillbirth is preventable, at least 25% of them are. Samantha Durante Banerjee, the executive director for Push for Empowered Pregnancy, shares how to lower the risk.

Halle Berry joined a group of bipartisan senators to push for legislation that would put $275 million toward research and education around menopause, the significant hormone shift women go through in middle age. Tamsen Fadal, an American journalist who is now an advocate for women's health, told "NewsNation Prime" so many women lack education and treatment when it comes to dealing with menopause.

Legal teams for the Idaho college killings case continued to throw jabs back and forth in the courtroom with the prosecution urging the judge to reject suspect Bryan Kohberger’s new alibi and the defense claiming the prosecution has withheld evidence.

The Georgia Republican says she plans to make a “motion to vacate” this week. That’s the procedure in which just one member of the House can bring a motion to remove the Speaker of the House. Race and Politics reporter for The Hill Cheyanne Daniels tells “NewsNation Prime” Greene’s move has little chance to succeed, especially since Democratic leader Hakeem Jeffries said he’ll support Johnson’s continued role as Speaker.

“Operation Hotline Bling” netted 15 arrests, including a Riverside County, California Sheriff’s deputy, 25 year old Jorge Oceguera-Rocha. NewsNation’s Jorge Ventura says the operation also seized about $16 million worth of drugs: nearly 200 pounds of meth, 100 pounds of fentanyl tablets and more the one kilo of cocaine.

Retired Lt. Gen. Richard Newton told "NewsNation Prime" "it is very confounding" if the U.S. has stopped the delivery of ammunition to Israel.