First, they'd shit their bloomers. They would be in awe of the machines ... but far moreso of the people. Hispanics, Blacks, Chinese, Indian, Albino and their whiter cousins the Irish. 270 million strong. That's just in line for Conan tickets.
They'd be 2 minutes on the Street and they would demand a caucus and 225 year debriefing. They'd be spellbound on historical events, especially the Godzilla-Mothra battle. The Civil War would devestate them.
We survived that. We beat a military imperial power in WWI. We snuffed out three of the most powerful and motivated fascist regimes in World History in WWII. We defeated the Worldwide threat of Communist Despotism ... that murdered 50-70 million innocents.
The boys would idolize us. They'd be blown away that we still have three branches, two Legislative bodies with disparate rules and tenure, a Supreme Court of nine, an electoral college and a service oriented Elanor Mondale.
They made the frigging system feature and upgrade rich. After learning of our Civil War, our 20th Century Wars, the Marshall Plan, our current challenge .... those boys would be crying. They weren't worthy in their minds, but they dodged numerous bullets before. Usually from a sauced Franklin. Everyone would leave with a shit eating grin.
America works. The Constitution is ready, willing and able to rock and roll all night.