He switched to Democratic- Republican. He first belonged to the Federalist Party.
John Adams did not switch political parties. He was a member and co-founder of the Federalist Party and remained affiliated with that party throughout his political career.
John Adams belonged to the Federalist party, which was in existence from the 1790s to about 1816.
democratic republican party
Federalist
John Adams
He was Federalist.
There were no political parties in 1789.
Federalist
Federalist
John Quincy Adams supported his father and the Federalists when he was young.
John Adams was the first vice president of USA under George Washington and was the second president of USA. He was initially a part of democratic-republican party and then joined federalist party under whose auspice s he won the presidential elections.
whig
Federalist