Answer:
The Mexican-American War was a conflict between the United States and Mexico, fought from April 1846 to February 1848. ... It stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande (the U.S. claim).
Answer: is this buzz
Explanation: vehicles, supersonic jets and cyber truck
Limited by Congress--they all had a mixed Congress to deal with and checks and balances prevented their full reform efforts.
FDR, JFK, and LBJ were all Democrats fighting not only a conservative Republican party but also a split in their own party. The Democrats were split over civil rights issues and the 3 often had to appeal to liberals and Southern dixiecrats.