Here's a link to another article on this topic: Social Security Disability Benefits May Be Cut by Nearly 20% | Blog | Nash Disability Law

Here's an excerpt:

Here’s how it happened: Social Security has two funds – one to pay old-age retirement benefits and the other to pay disability benefits. The two funds have routinely borrowed from each other as needed. This accounting procedure has been done 11 times in the past and even was done four times during the Reagan presidency. However, just one day after the new Congressional members were sworn into office, conservative Republicans passed a rule that prohibits any transfer of money to the Social Security Disability Trust Fund unless it is accompanied by “benefits cuts or tax increases that improve the solvency of the combined trust funds.”

It is Republicans who are pushing to cut benefits to the disabled.