President Donald Trump has suffered three major legal setbacks in recent days that experts say could put his plans for mass deportation at risk – at least until a higher court steps in.

Over the week bridging August and September, federal judges in separate cases have ruled against the president's immigration enforcement tactics and sided with immigrant advocates who have challenged their legality.

Judges blocked the deportation of some migrant children who crossed the border alone; forbade the rapid removal of immigrants who have been in the country for more than two years; and stopped the administration's use of an arcane law to deport alleged gang members without due process.

Trump administration officials and supporters have slammed the decisions of so-called "activist judges" who they say are overstepping their authority to prevent the president's enforcement of the nation's immigration laws.

The one-two-three judicial punches could risk the president's plans to deport as many as 1 million people per year.