Former Vice President Joe Biden vowed Tuesday to fight state bills restricting abortion, in a video posted to Twitter.

Biden described the laws in Missouri, Alabama, and Georgia as “extreme” legislation that would trigger a Supreme Court ruling on Roe vs. Wade with a new conservative majority on the court.

Biden described abortion as a right guaranteed by the Constitution and vowed to fight the state efforts to restrict abortion.

“A woman governor actually signed one of these pieces of legislation,” Biden said in the video. “It’s wrong, it must be stopped, this is a choice under Roe between a woman and her doctor … we must protect that right.”

Despite a mixed record of supporting restrictions on abortion, Biden is campaigning in 2020 for a woman’s unfettered right to an abortion at any point in her pregnancy.

He also told activists last week that he supported a repeal of the Hyde Amendment — the law keeping federal funds from funding abortions.