President Donald Trump is acting on his campaign promises at the fastest clip in modern memory — sending almost hourly shockwaves through the government, the legal system, the science community and around the world.

The Mexico City policy, or “global gag rule,” blocks U.S. aid to foreign organizations that perform or discuss abortions.

The move, announced in a presidential memorandum Friday, revives a policy that Trump and many other Republican presidents have implemented.

The US tends to ping-pong on the rule based on the president’s political party, but Trump’s version goes further than previous bans. View on euronews

In a widely expected move, President Donald Trump capped off the anti-abortion March for Life celebrations by reinstating the so-called "Mexico City Rule," an abortion restriction that has been in place under every Republican president since the Ronald Reagan administration,