Final answer:
The Henry Adams was written to criticize and discredit President John Adams. Supporters of Andrew Jackson attacked Adams's presidency and accused him of being a monarchist and having questionable morality.
Step-by-step explanation:
The Henry Adams was written to criticize and discredit President John Adams. Supporters of Andrew Jackson, who was running against John Adams in the election of 1828, wrote the Henry Adams to attack his presidency.
They accused him of being a monarchist, seeking to establish a dynasty, and questioned his morality. The Henry Adams was a way for Jackson's supporters to undermine Adams and gain political support for Jackson.