Answer:
conservative Christians
Historical details:
In his campaign for the presidency in 1980, Ronald Reagan promised to decrease taxes and reduce the size of the federal government. He also promised to improve the economy, restore faith in the nation, make the US military stronger ... and to push for a constitutional amendment to reverse Roe v. Wade, the Supreme Court decision which had legalized abortion.
As for Reagan's promises about a constitutional amendment to reverse Roe v. Wade, those promises played well with conservative Christians, who supported him. And while in office as president, Reagan continued to make many powerful statements against abortion. But he did not actively push for political or judicial action to change the laws concerning abortion in the country. President Reagan: The Role of a Lifetime, a biography written by Lou Cannon (1991), stated: "While I do not doubt Reagan’s sincerity in advocating an anti-abortion amendment, he invested few political resources toward obtaining this goal."