Ivanka Trump successfully pushed to get a family-focused tax credit included in the Republican tax overhaul proposal. She’s got no time for a victory lap, though: Now comes the biggest political challenge of her time in Washington.

The White House adviser and first daughter is lobbying on Capitol Hill to make sure an expansion of the current $1,000 child tax credit stays in the tax plan and that it’s big enough to matter. Then there’s the added hurdle of getting the overall tax plan over the finish line — anything but a sure bet.

Trump has been wooing lawmakers and conservative advocacy groups behind closed doors and is expected to make her case in public as well, as part of a coordinated White House push for the tax overhaul. All this as she tries to steer clear of the West Wing histrionics involving her father that have threatened to engulf her at times. She’s studiously sticking to her policy agenda, promoting issues such as STEM education and workforce development, while trying to tune out the noise.

“A significant expansion of the child tax credit will help parents have more money at a time in their lives when they need it the most and give them the flexibility to make the best choices regarding their families’ care,” Trump said in a statement to The Associated Press.