The Trump administration is considering forcing Israel to hand back some $75 million in U.S. aid dollars that were awarded by Congress following a hotly contested effort by the Obama administration to financially limit the U.S.-Israel military alliance, according to senior Congressional sources and others familiar with the situation.

Congress allocated Israel an additional $75 million in U.S. aid last year, bringing the total package to around $38 billion, despite attempts by the Obama administration to restrict Israeli efforts to lobby Congress in favor of greater funding for several key military projects.

Lawmakers had objected to the Obama administration’s last minute Memorandum of Understanding (MOU) with Israel, which capped U.S. aid dollars to the Jewish state and included a provision barring Israel from requesting greater financial assistance from the U.S. Congress.

Now, the Trump administration is considering forcing Israel to hand back the extra $75 million in order to stay in line with the Obama administration’s original MOU, according to multiple sources, who told the Free Beacon that Congress is preparing for a fight with the current administration if it chooses to move forward with the plan.

Secretary of State Rex Tillerson is said to be spearheading the effort to request Israel give back the additional funding, arguing that Israel must stick to the letter of the former Obama administration’s MOU, despite objections by Congress, sources told the Free Beacon.