WASHINGTON — The 11 million people who receive Social Security disability face steep benefit cuts next year — unless Congress acts, the government said today.The trustees that oversee Social Security said the disability trust fund will run out of money in late 2016, right in the middle of a presidential campaign.That would trigger an automatic 19 percent cut in benefits.The average monthly benefit is $1,017.The report said the fund faces “an urgent threat” that requires prompt action by Congress …