How can a child live with parents for a whole year if it they are born in December?  This does not make sense.  Could you provide a link at irs.gov that supports your statement?

That's the way TurboTax does it. Admittedly it causes confusion.
In  any case, if your child is born and lives, you get the deduction.

IRS publication page 14 and page 19.

"Death or birth of child. A child who was born or died during the year is treated as having lived with you more than half the year if your home was the child's home more than half the time he or she was alive during the year. The same is true if the child lived with you more than half the year except for any required hospital stay fol­lowing birth."

Turbotax uses a # of months metric to get at the question of whether the child lived with you more than half the year, so to indicate that a newborn lived with you more than half the number of days since their birth, you have to select "all year" (or any number of months 7 or greater).

Thank you so much for clarification