Answer:
Thomas Jefferson's decision to purchase the Louisiana territory was controversial, because he bought the land before he even took a look at what kind of land it was. Opponents of Jefferson was quick to say that Jefferson was a "French-lover" who bought a 'wasteland with no nutrition, nothing to grow and plant, a desolate, miserable place', and Jeffersonians were also worried that they did not get a good bargain. This led to Thomas Jefferson sending out the more famous Lewis & Clark Expedition, as well as many others to establish relations with groups of people living west as well as explore the land, it's greenery, and it's animals. Without these expeditions, the Louisiana Purchase would have been known as Jefferson's folly, and would have taken longer for US citizens to start the move west.
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