Amid fears that U.S. Congress can slash more than a half-billion dollars in federal funding for Planned Parenthood, the women’s health nonprofit organization is leaning on donors and preparing to lobby friendly legislators to stem some of the potential loss.

The potential decision to defund Planned Parenthood has become more likely as Congress as well as the White House is going to be under the control of the Republicans for the first time since 2006. President-elect Donald Trump has already indicated his support for defunding the organization.

There is also a possibility that Roe v. Wade, the S.C. decision that legalized abortion nationally nearly 40 decades ago, could be reversed.

Admitting the looming threat, Planned Parenthood spokesperson Erica Sackin, “Obviously we are doing everything we can through advocacy and everything else to make sure we can continue to serve patients. But at the end of the day, this is a fight of a scale that we haven’t seen before and we need to be realistic about how much is at stake.”

Planned Parenthood officials have thus started gaming out which communities might be able to withstand a loss of services, while also asking supporters to receive their medical care at clinics run by the organization to boost privately insured patients’ proportion.

Federal funding, most of which comes in the form of Medicaid reimbursements, accounts for more than 40 per cent of Planned Parenthood’s annual budget. Officials have warned that any decrease in funding would force the organization to close several healthcare programs.