There's literally been bipartisan efforts to expand the child tax credit ($1000 per year baseline, expanded to $2000 for 2018-2025 and expiring this year, plus COVID era provisions or up to $3000 or $3600 for 2021), and the bills to do so keep dying without a vote.
If they were serious about this they'd expand the 2021 program to where parents were getting $300 checks every month, and make that permanent and indexed to inflation.
So much of the Trump presidency is announcing a new program that sounds good, but isn't even enough to make up for a program that he already killed.