They can not. Neither US Citizens or Green Card Holders can be denied entry.
Sources: https://www.aclu.org/know-your-rights/what-do-when-encounter...
https://www.aclunc.org/our-work/know-your-rights/know-your-r...
A country can not deny entry to its own citizens.
They can immediately arrest you, however.
But not for not giving them access to your phone.
What the will arrest you for vs can arrest you for are very different things. Really. This isn’t cynicism, is empirical knowledge. If they want to arrest you, you’re getting arrested. They can arrest you because they can arrest you. This is the strict literal sense of can.
In America, Europe, etc.
They are not legally entitled to deny you entry.
That doesn't mean they can't deny you entry. It means you might win a court case some day.
ICE cannot legally arrest people who are citizens for no reason, and yet they have done exactly that 30% of the time by their own admission.
"Knowing your rights" is meaningless if the public chooses to vote for people who don't care about those rights, and celebrate when you do not get your rights.
It doesn't matter what the paper says, it matters what CBP feels like doing, and what their management lets them get away with. The constitution is just a magic circle we all agree to play in, and isn't real if enough people disregard it.
If the border agent doesn't want you to come into the country, you are fucked. Nobody's job is to get between that agent and you and ensure the border agent follows the law on the paper, and the border agent will not go to jail or even lose their job for completely ignoring the law.
> If the border agent doesn't want you to come into the country, you are fucked.
You are seriously inconvenienced, but assuming your paperwork is in order, you will be allowed into the US. This isn't just against US law, it's a violation of international law to render a person stateless.
This ignores the real point, which is that while you cannot be refused entry to the United States, you can be arrested at the border. ICE these days has mastered the art of making people's detainment so uncomfortable that even those with a right to be in this country end up deciding to leave.
yes sure you can come into america, straight into a holding cell until you hand over your pins/passwords or go back home.
> ICE cannot legally arrest people who are citizens for no reason, and yet they have done exactly that 30% of the time by their own admission.
Where are you getting that statistic (honest question)?
I overstated, but it's murky.
https://www.dhs.gov/news/2025/12/05/despite-medias-claims-ic...
Why would ICE leave the number as low as "70%" if they could be higher? Every illegal alien is a criminal as far as the law is concerned. Every illegal alien arrested is "charged with a crime". Otherwise ICE is openly stating to its supporters that they arrest illegal aliens and then release them, something their supporters are vocally against, and the administration believes and claims to be a serious problem.
Meanwhile, the Cato Institute a libertarian think tank, claims they have been leaked far worse data https://www.cato.org/blog/5-ice-detainees-have-violent-convi...
A direct reading of ICE's claims (that seem to be contrary to information obtained through FOIA?) is that 70% of the people they arrest are criminals, which by their own definitions, would imply 30% of the people they arrest are not illegally here, but that's reading between the lines and it's hard to lend any credence to anything said by an administration that treats public statements as a fun gaslighting game.
But essentially, if ICE COULD claim everyone they arrest is an illegal alien (and literally a criminal they are legally allowed to arrest and deport), why wouldn't they?
Flag my claim if appropriate.
I think this is a misinterpretation of the document. The claim is:
> 70% of ICE arrests are of criminal illegal aliens charged with or convicted of crimes in the U.S.
I believe the claim here is that 70% of the people ICE arrests have been charged with or convicted of crimes other than being present in the USA illegally. I don't think this is at all meant to imply that 30% of arrests are of people who are present in the USA legally. I think it's just sloppy writing.
I mean, you didn't just overstate, you flat out just made it up. The opposite of "illegal alien" is not "citizen".