Maine borders only one state.
New Mexico. Mexico is a country bordering the United States and New Mexico, a state in the the United States, has the same name. The only state in the US that has the name of a country that borders the US in it is New Mexico. The other country is Mexico.
Arizona
Louisiana, Arkansas, Oklahoma, New Mexico.
In the US, that would be Louisiana. In Mexico that would be Tamaulipas.
We drove from Morelia to Veracruz and I believe it took us about 8 hours, maybe less.
No. The US states that border the country of Mexico are California, Arizona, New Mexico and Texas. If you were asking about the US state of New Mexico, Minnesota doesn't border such state, either. Minnesota borders Canada, both Dakotas, Iowa and Wisconsin.
Arizona qualifies as such.
New Mexico - Borders Mexico, of which it was once a part.
No, Mexico borders the US as well.
None:California borders Mexico and the Pacific Ocean.Texas borders Mexico and the Gulf of Mexico, which is usually not considered as part of the Atlantic Ocean.
Mexico is the only country which borders the US to the south & Canada borders to the North.