LINCOLN, Neb. (AP) Abortion bans in Nebraska and South Carolina fell short of advancing in close votes amid heated debates among Republicans , confounding conservatives who have dominated both legislatures and further exposing the chasm on the issue of abortion within the GOP.

In Nebraska, where abortion is banned after 20 weeks of pregnancy, an effort to ban abortion at about the sixth week of pregnancy fell one vote short of breaking a filibuster. Cheers erupted outside the legislative chamber as the last vote was cast, with opponents of the bill waving signs and chanting, Whose house? Our house!

In South Carolina, lawmakers voted 22-21 to shelve a near-total abortion ban for the rest of the year. Republican Sen. Sandy Senn criticized Majority Leader Shane Massey for repeatedly taking us off a cliff on abortion.

The only thing that we can do when you all, you men in the chamber, metaphorically keep slapping women by raising abortion again and again and again, is for us to slap you back with our words, she said.

The Nebraska proposal, backed by Republican Gov. Jim Pillen, is unlikely to move forward this year. And in South Carolina, where abortion remains legal through 22 weeks of pregnancy, the vote marked the third time a near-total abortion ban has failed in the Republican-led Senate chamber since the U.S. Supreme Court reversed Roe v. Wade last summer.

Katie Glenn, the state policy director for Susan B. Anthony Pro-Life America, characterized the failure of both proposed abortion bans as disappointing.

Its a sign that legislating is hard, and theres a lot of pieces and parts that all have to come together, Glenn said.

The bans staunchest supporters have promised political retribution.

Since the fall of Roe, both states have become regional havens of sorts as theyve watched neighboring states enact stricter abortion bans. Conservative lawmakers have bitterly made that observation in Nebraska, which has a long history as a leader in abortion restrictions . In 2010, it was the first state in the nation to ban abortion after 20 weeks of pregnancy.

Most aggravating to some Republicans is that the pushback is coming from inside the house. The Nebraska bill on Thursday failed when Republican Sen. Merv Riepe, an 80-year-old former hospital administrator, refused to give it the crucial 33rd vote needed to advance. Riepe was an original co-signer of the bill but later expressed concern that a six-week ban might not give women enough time to know they were pregnant.

When his fellow Republicans rejected an amendment he offered to extend the proposed ban to 12 weeks and add an exception for fatal fetal anomalies, Riepe pointed to his own election last year against a Democrat who made abortion rights central to her campaign. His margin of victory dropped from 27 percentage points in the May primary election, which occurred before the fall of Roe, to under 5 percentage points in the general election.

Had my opponent had more time, more money, and more name recognition, she could have won. This made the message clear to me how critical abortion will be in 2024, he said. We must embrace the future of reproductive rights.

Riepe and some Republicans across the country have noted evidence pointing to abortion bans as unpopular with a majority of Americans. An AP VoteCast nationwide survey of the 2022 electorate showed only about 1 in 10 midterm voters including Republicans believe abortion should be illegal in all cases. Overall, a majority of voters said abortion should be legal in all or most cases. That includes nearly 9 in 10 Democrats and about 4 in 10 Republicans.

An Associated Press-NORC Center for Public Affairs Research poll in July showed Republicans are largely opposed to abortion for any reason and at 15 weeks into a pregnancy. But only 16% of Republicans say abortion generally should be illegal in all cases.