WASHINGTON (AP) — The Senate is poised to vote Wednesday on a $612 billion defense policy bill that President Barack Obama says he'll veto over a larger dispute about government spending.

Obama doesn't like the way the bill increases defense spending by padding a separate war-fighting account with an extra $38 billion. Congress didn't increase money for domestic agencies too as the president wants.

Senate Majority Leader Mitch McConnell, R-Ky., said the president's desire to veto the bill is "outrageous" in the light of national security threats.

"I wish I could say it surprised me that President Obama might — for the sake of unrelated partisan games — actually contemplate vetoing a bipartisan defense bill that contains the level of funding authorization he asked for," McConnell said on the Senate floor. "I'm calling on him not to, especially in times like these."

Senate Minority Leader Harry Reid, D-Nev., said the bill uses "funny money" to fund national defense. He said the bill does nothing to support security needed at home because the spending caps still apply to other agencies that protect the U.S., such as the FBI and border security.

The defense policy bill is one of the few bipartisan measures in Congress that has readily become law for more than a half-century, but Obama's veto threat jeopardizes the legislation.

White House spokesman Josh Earnest has repeatedly said that the president will veto it because it's an "irresponsible way" to fund national defense. Obama also is upset about provisions in the bill that would make it harder for him to transfer suspected terror detainees out of the military prison in Guantanamo Bay, Cuba, as part of his plan to close it before he leaves office.

Among other things, this year's bill provides a 1.3 percent pay increase to service members; authorizes lethal assistance to Ukraine forces fighting Russian-backed rebels; extends the ban on torture to the CIA; and authorizes the president's request of $715 million to help Iraqi forces fight Islamic State militants.