Good thinking anon, but old news. There are layers to the continuity of government (in most cases, keeping the DS alive). C2 bunkers all over the place (Cheyenne Mountain, SAC HQ (where Bush went to on 9/11), etc.), WV is sprinkled with them. TACAMO and E4B provide ABCCC, AF1 or Marine 1 provide POTUS transportation. Used to be, not sure about current, a helo that would race up the Potomac every day practicing taking the Pentagon staff to a location. All pretty well documented if you have the time and desire to dig. BTW, if you want to research something fun, long time rumors about the area around Culpeper, VA – bunker full of gold is one rumor. C_A safehouses (a Russian defector/spy was put up in a house out that way back in the 80s or 90s that was “leaked” to the public)…
I don't think she runs until 2024 - doesn't want to lose to Trump.