On a four-day trip through Europe, President Biden is sending the message that the US and allies are united in their response to the Russian invasion of Ukraine. But a month after the invasion began, it's not clear that diplomatic pressures are working to deter Russia's aggression. Also, Clarence Thomas's wife Ginni Thomas repeatedly urged then-White House Chief of Staff Mark Meadows to overturn the results of the 2020 election. The news is sparking questions about whether the Supreme Court justice should recuse himself from future cases related to the January 6 insurrection. This episode: Congressional correspondent Susan Davis, White House correspondent Tamara Keith, State Department correspondent Michele Kelemen, and national justice correspondent Carrie Johnson. Connect:Email the show at nprpolitics@npr.orgJoin the NPR Politics Podcast Facebook Group.Subscribe to the NPR Politics Newsletter.Find and support your local public radio station.