Answer: President Martin van Buren
Explanation: President Martin van Buren refrained from annexing Texas after the Mexicans threatened war.
The most important immigrant processing center which was found in New York City after the 1890's was Ellis Island.
Answer:
They were forced to settle in the suburbs.
Thomas Jefferson questioned his right to buy the Louisiana Territory as the United States Constitution did not directly address the acquisition of land by the President.
The Federalists were clamoring that the Louisiana Purchase was unconstitutional but the Democratic Republicans believed it was permissible as it was merely a treaty.
