Why did the Jamestown colony almost fail?

because the Virginia Company made a poor choice when they decided where to establish it, and they were unable to successfully work togetherExplanation:

The men were more interested in searching for gold than planting crops. The colony lacked sources of fresh water. The Native American tribes would not trade food and supplies.Then John Smith took control of Jamestown and helped it become a stable colony. Then the Powhatan chief became friends with John Smith.

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Explanation:

sam houston basically made tx he fought for anrew lead troops in the battle of san jacinto and then became president and james polk

the congress realized that action had to be.