Jesus didn't baptize. The disciples would have been baptized into John's baptism of repentance.
@Hiddenthings is attempting to show they were baptized into Christ, that is, saved as we are, and then Judas being lost, that would "prove" you can lose salvation, in the sense of having been reborn, then to become unreborn.
However, none were baptized into Christ prior to Christ's death and resurrection.
First he said they were baptized into the Lord. Then when I questioned that, he changed it to say, You don't think they were baptized?
This is just a ploy to make his assertion without foundation. When I question it, he changes it.
Much love!