Ukrainian troops have started training on the Patriot missile system to help defend itself against Russian attacks. House Republicans are weighing whether to launch impeachment proceedings against Homeland Security Secretary Alejandro Mayorkas. A new study underscores the risks of Covid-19 during pregnancy. A reality TV couple convicted of tax evasion and bank fraud has started serving their prison sentences. And, the Golden State Warriors return to the White House to celebrate their 2022 NBA championship.To learn more about how CNN protects listener privacy, visit cnn.com/privacy