Michigan Consumers for Health Care, a nonprofit group, has enrolled thousands of people in health insurance under the Affordable Care Act and was honored last year as one of the nation’s top performers — a “super navigator” that would serve as a mentor to enrollment counselors in other states.  So the group was stunned to learn from the Trump administration that its funds for assisting consumers ahead of the open enrollment period that begins Nov. 1 would be cut by 89 percent, to $129,900, from $1.2 million.