because some young teens crossed the borders by themselves.
Obama was keeping families together; but then a judge said Obama couldn't even do that longer than 20 days, so then he started releasing the families on the 21st day. So Biden was NOT lying. It was not Obama policy to either prosecute all border crossers or to separate families.
Under Sessions, in April 2018, they announced a new policy of prosecuting all undocumented border crossers, and throwing the parents into jail. Obama wasn't doing that.
https://www.factcheck.org/2018/06/did-the-obama-administration-separate-families/
Previous administrations used family detention facilities, allowing the whole family to stay together while awaiting their deportation case in immigration court, or alternatives to detention, which required families to be tracked but released from custody to await their court date, Brown and her co-author, Tim OShea, wrote in an explainer piece for the Bipartisan Policy Centers website. Some children may have been separated from the adults they entered with, in cases where the family relationship could not be established, child trafficking was suspected, or there were not sufficient family detention facilities available.
However, the zero-tolerance policy is the first time that a policy resulting in separation is being applied across the board.
Jeh Johnson, DHS secretary under the Obama administration, told NPR earlier this month that he couldnt say that family separations never happened during his tenure. There may have been some exigent situation, some emergency. There may have been some doubt about whether the adult accompanying the child was in fact the parent of the child. I cant say it never happened but not as a matter of policy or practice. Its not something that I could ask our Border Patrol or our immigration enforcement personnel to do, Johnson said.
The Obama administration faced a surge of unaccompanied children from Central America trying to cross the border in 2014. Cecilia Muñoz, director of the Obama administrations Domestic Policy Council, told the New York Times this month that a multi-agency team was considering every possible idea at the time, including separating families. I do remember looking at each other like, Were not going to do this, are we? We spent five minutes thinking it through and concluded that it was a bad idea, the Times quoted Muñoz saying. The morality of it was clear thats not who we are.