How might an John Quincy Adams supporter use Senator Marcy's words to respond to Andrew Jackson's letter?

Well, honey, a John Quincy Adams supporter could use Senator Marcy's Words to clap back at Andrew Jackson by pointing out the hypocrisy in his actions or highlighting any contradictions in his letter. It's all about throwing some shade while staying classy, darling. Just serve up that tea and let the facts do the talking.