What were the major domestic political developments that took place during thomas jefferson's administration?

They were, in chronological order:

1. In 1803, Louisiana Purchase, Thomas Jefferson's purchase of the Louisiana Territory from France, a decision to secure the port of New Orleans and increasing the territory of the US.  

2. On February 19, 1803, President Jefferson signed an act of Congress that approved constitution of Ohio as a new state.

3. From 1804 to 1806, Lewis and Clark Expedition, to explore the new land acquired through the Louisiana Purchase.  

4. The Congressional Act of Abolition of Slave Trade, in 1807, was thought to eliminate America's involvement in the international slave trade, especially from the African continent.

idk

explanation: idk