"Section 1402, which appears on Page 119 of the ACA, is aimed at easing a problem that Trump himself has focused on: the onerous deductibles and other out-of-pocket expenses that often come with insurance plans on the ACA exchanges. The provision lays out a set of formulas that, in essence, requires insurance companies to waive some of the deductibles and other co-payments for lower-income families. Under 1402, the government is required to reimburse insurers for the cost of these waivers. About 7 million Americans benefit."
And there are other ways, detailed in this article...