They have already pledged to do similar?

First, I have made clear to House Republican leadership that any effort to steal taxpayer money from the American people, end Medicaid as we know it or defund programs important to everyday Americans, as contemplated by the illegal White House Office of Management and Budget order, must be choked off in the upcoming government funding bill, if not sooner.

https://democraticleader.house.gov/media/press-releases/dear-colleague-re-ongoing-house-democratic-caucus-activity

And note that the dems only have power on this if republicans fight each other like last time. Reconciliation means it only requires a strict majority on spending bills (but can only be used a couple of times per year)