Biden's liberal "christianity"? Well, no, what is happening is faith in "the thing".
Here we have a bit of detail in what sort of thing this faith is in:
When it was time for the homily, the Rev. Kevin F. O’Brien, the president of Santa Clara University and friend of the Biden family, compared Mr. Biden’s upcoming inaugural message to the words of Jesus.
“Your public service is animated by the same conviction,” he said, “to help and protect people and to advance justice and reconciliation, especially for those who are too often looked over and left behind.”
“This is your noble commission,” he said. “This is the divine summons for all of us.”
The actual Christian commission is found in Matt 28:
19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost:
20 Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you always, even unto the end of the world. Amen.
The article makes it clear that while there is a lot of "liberalism" in this faith, it is "Christian" in name only. Like the rest of our "culture", whatever "it" is, it is not culture, and certainly not "Christian". We live in an age of fake religion, fake culture, and fake virtue. What we have is increasingly real Fascism.
Practicing Christians that know Christ died on the cross to redeem us from eternal damnation, not to foster new social programs that attempt to make the government "God". He told his followers to feed the poor and other good deeds -- not to puff your chest because you voted to outsource your "good deeds" to the government.
There is still nothing new under the sun. "For God knows that when you eat from it your eyes will be opened, and you will be like God, knowing good and evil." Indeed ... and sadly in this world, mostly evil.
Reading the article shows just how far we have fallen from that tree.
President Biden, perhaps the most religiously observant commander in chief in half a century, speaks of how his Catholic faith grounds his life and his policies.
He may be "religious" and to some degree, even "Catholic" (to the extent that church abandons life, marriage, sexual morality, etc), but he is in no way Christian, unless he repents!