We now know more about Trump's proposal to subsidize child care

Donald Trump's proposal to make child-care expenses tax-deductible became a little less vague on Thursday — and significantly more expensive.
In a statement pushing against Hillary Clinton's "wild lies" about the proposal — note: not wild lies, just attempts to interpret Trump's single-sentence proposal about a complicated matter — the Trump campaign provided more detail on how the deduction would work:
The deduction would be "above the line." That means that it would appear be