俄罗斯议员接到邀请赴美讨论乌克兰问题

Group 1 - The core point of the article is that four members of the Russian State Duma have been invited by the U.S. to discuss issues related to Ukraine and U.S.-Russia relations in Washington [1] - The discussions will focus on unresolved urgent issues over the years, including economic matters, terrorism, and security [1] - The invitation was extended by U.S. Congresswoman Anna Paulina Luna, who received permission from the State Department to issue visas for the Russian delegates [1] Group 2 - The meeting aims to address the prospects of U.S.-Russia trade and how to strengthen bilateral relations [1] - The exact timing of the talks has not yet been finalized by both parties [1]