[TheBigIf]

And as one of his first acts as President, Thomas Jefferson passed the Abolition of Slavery Act outlawing the importation of any future slaves. Yes it was not a complete ban of slavery but was an important step in that direction in the fight against slavery.

[Sherman Logan]

And as one of his first acts as President, Thomas Jefferson passed the Abolition of Slavery Act outlawing the importation of any future slaves.

Actually, one of his last acts as President. 1807, and he took office in 1800.