Service cuts may be coming to Amtrak due to the COVID-19 vaccine mandate.

A company executive told Congress that the railroad doesn't expect to have enough people to operate all its trains next month.

Amtrak's president says about 5% of its workforce has yet to get vaccinated less than four weeks before the Jan. 4 deadline.

The railroad is still determining what trips will be removed and wants to give passengers enough time to rebook trips.