Ivanka Trump kicked off her own tax reform sales pitch on Wednesday morning, holding an off-the-record meeting with conservative activists such as Ralph Reed and Grover Norquist in an effort to sell them on her idea of expanding the child tax credit.Trump, who has been working with Sen. Marco Rubio’s office to develop the policy details, indicated that she would like to see the child tax credit double from its current level of $1,000 annually to at least $2,000 — with the extra money routed to taxpayers by reducing the amount of payroll taxes they pay.Doubling the child tax credit would boost the administration’s talking point of a tax overhaul as a populist move to aid middle class families, a selling point for President Donald Trump’s base.The major political hiccup is that expanding any type of tax credit costs money, and the administration is already on a serious hunt for revenue to pay for lowering both the corporate and individual tax rates.The child tax credit is also not something that tends to unite or animate the broader business community, one of the major constituents of tax changes.