How to protect the Presidential Cruise Ship?

Not a carrier group. But even the Washington State ferries get machinegun boat escorts sometimes “since 9/11” (gag).

Put those computer controlled high calibre gatling guns on the ship for point defence against missiles and aeroplanes and a submarine against other subs and ships.

Just remember, the only way for a sinking ship is DOWN.

Do we need a Presidental Cruise Ship??

NO.

Well, at any rate China will want to protect it’s investment (cruise ship)...

Pull the funding, no ship nothing to protect. Hell, he has a customized 747, no way the president needs or deserves a ship. If he wants to go on a cruise, there Carrier Battle groups in both oceans.