Alexander Litvinenko, a former Russian intelligence officer, died in London weeks after drinking tea that was later found to have been laced with the deadly radioactive compound polonium-210.
Biden tried to repair ties with European allies and convinced them to take a tougher stance on China. Next he'll confront Russia. But selling this at home remains the hardest part.
Biden will instead hold a solo press conference, which a White House official called "the appropriate format to clearly communicate with the free press the topics that were raised in the meeting."
President Biden will be in Europe for eight days, first meeting with allies and partners at the G7 and NATO summits. And then, he'll square off with Russian President Vladimir Putin in Geneva.
President Biden and Russian President Vladimir Putin will meet face-to-face in Switzerland next month. The agenda will include nuclear arms control, climate change and Russia's election meddling.
President Biden is getting ready for a summit with Russian President Vladimir Putin next month. Domestic politics are making Biden's approach to the talks even tougher.