Abortion was made legal across the US after a landmark legal ruling in 1973, often referred to as the Roe v Wade case. However, a leaked document claims that the Supreme Court - the nation's most senior legal body - is now in favour of overturning that right. Abortion could instantly become illegal in 22 states. A decision is expected in late June or early July. Currently many states have restrictions such as requiring young pregnant women to involve their parents or a judge in abortion decisions, or waiting periods between the time a woman first visits an abortion clinic and the actual procedure. Sometimes women have to travel across state borders for an abortion and pay more for them. According to the pro-choice movement, poor women are penalised most by these restrictions. There are nine judges on the Supreme Court; six were appointed by Republican (pro-life) presidents.