Story highlights Trump signed the law without a press spray

It allows states to withhold money from Planned Parenthood

Washington (CNN) President Donald Trump privately signed a bill on Thursday that allows states to withhold federal money from organizations that provide abortion services, including Planned Parenthood, a group frequently targeted by Republicans.

The bill, which the usually camera-friendly President signed without any media present, reverses an Obama-era regulation that prohibited states from withholding money from facilities that perform abortions, arguing that many of these facilities also provide other family planning and medical services.

The bulk of federal money Planned Parenthood receives, though, goes toward preventive health care, birth control, pregnancy tests and other women's health services. Federal law prohibits taxpayer dollars from funding abortions and Planned Parenthood says 3% of the services it provides are abortions.

The signing comes weeks after Vice President Mike Pence, a social conservative who regularly touts his anti-abortion stances, cast the tie-breaking vote in the Senate after two Republicans opposed the measure.

"(Women's) worst fears are now coming true. We are facing the worst political attack on women's health in a generation as lawmakers have spent the past three months trading away women's health and rights at every turn," Dawn Laguens, executive vice president of Planned Parenthood, said in a statement.

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