Bipartisan spending legislation approved by Congress represented a major defeat for ultraconservatives, who immediately turned on Speaker Mike Johnson.
Party leaders, national security institutionalists and centrists make up the 17 Republicans who joined Democrats in breaking a filibuster against the military aid, defying former President Donald J. Trump.
Republicans have scuttled efforts to rewrite immigration laws repeatedly over the past two decades, despite powerful bipartisan coalitions behind the efforts.