Either street parking (mostly metered) or there are parking lots a few blocks away.
I found parking one block over...
We parked in a public garage. You can park on the street at a meter of you like
Depends on what time you go there. We were lucky we parked right by the museum and walked right in.
Take the metro or get an uber to drop you off. Very difficult to get parking
Like all access to the National Mall the Metro is the best option.
I can't stand too long could I bring my folding chair I have a bad back
Don't know about parking. I took Uber from Arlington.
Parking decks across the street $28 for 2-2.5hrs
DC bikeshare, ofo, mobike or metro. One does not park in DC. :)
Thanks! Your answer is awaiting moderation.