The Republican Party’s wholesale rejection of the bipartisan border security deal came at the expense of four months of work from one of their own.

Sen. James Lankford (R-OK) was the GOP’s lead negotiator on the agreement, which Republicans abandoned within two days of the legislative text being released. Appropriators unveiled bill text on Sunday following months of negotiations between a bipartisan trio of members and the White House on a border security deal that would unlock assistance for Ukraine, Israel, and Taiwan.