All US citizens have representation in the US government.
These nuts
The same you have in the US.
The US annexed the former Mexican State of Tejas which the Mexican Government still considered as a Mexican State in revolt.
Yes, it is.
Yes.
A Mexican government-issued passport and a US Government-issued visa.
No
Mexican farmers were not subsidized by their government; US farmers were. NAFTA allowed the subsidized US products to be sold on the Mexican market cheaper than Mexican products.
I like ice cream
When it got tired of the Mexican government. It jumped the border.
Well, because the answer if both of you are of the same country of origin is so obvious, I am going to assume you mean one of US citizenship and one of Mexican citizenship. If you want to get married in the US, the person with US citizenship would have to set up the marriage. I would ask your local government officials.