Sen. Wendy Davis (D-Tex) (Tracy Nangthavongsa via Flickr)

Davis began speaking Tuesday morning at 11:18 am C.D.T. and must speak without rest until midnight in order to succeed, Slate reported. 

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The proposed bills would mean closure of 37 out of the 42 abortion clinics in Texas, according to the Guardian. Other results would be the ban of abortion after 20 weeks and limit the availability of some drugs meant to induce abortion. 

President of the Planned Parenthood Action Fund Cecil Richards said that "This bill would endanger the health and safety of millions of women in Texas. If this passes, abortion would be virtually banned in the state of Texas, and many women could be forced to resort to dangerous and unsafe measures."

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Governor Rick Perry intends to sign the bill, if Davis' filibuster does not succeed. If it does succeed, Perry has the right to call a special session to revisit the issue.

"The horrors of the national late-term abortion industry are continuing to come to light, one atrocity at a time, the New York Times quotes Perry as saying. "Sadly, some of those same atrocities happen in our own state."

Read more Neon Tommy coverage of the abortion debate here.

Reach Deputy Editor Lauren Madow here. Follow her here.