President Biden will announce sanctions this week on hundreds of members of Russia’s lower house of Parliament, according to a White House official familiar with the announcement, as the United States and its allies reach for even stronger measures to punish President Vladimir V. Putin for his monthlong invasion of Ukraine.
The announcement is scheduled to be made during a series of global summits in Europe on Thursday, when Mr. Biden will press Western leaders for even more aggressive economic actions against Russia as its forces continue to rain destruction on cities in Ukraine.