A black mark against Jefferson that he supported Revolutionary France. Washington wisely kept the baby US neutral.
In 1800 a lot of Federalists were terrified by the idea that Jefferson might become President--they expected him to enact measures like those of Revolutionary France.
Jefferson did not have a favorable view of Napoleon, at least in his later years.
The Jay Treaty made in Washington's second term was very unpopular, but it prevented a war between the US and Britain.
The XYZ Affair led to the Quasi-War with France. When Adams saw a chance to make peace with France in 1800, he did so, which may have deprived him of victory in the 1800 election, but he did what was right for the country.