The family of late singer-songwriter Isaac Hayes is making it clear they dont want to be a part of former President Donald Trump s campaign.

The Hayes family on Sunday threatened a copyright infringement lawsuit against Trump and his campaign officials for their unauthorized use of Hayes song, Hold On, Im Coming.

The song, co-written by Hayes and Dave Porter, and made famous in 1966 by R&B duo Sam & Dave , has been played before Trumps speeches at a number of recent rallies.

In a three-page letter issued by Georgia-based attorney James L. Walker Jr., the Isaac family notes it has asked repeatedly for the Trump campaign not to use the song, citing 134 instances in which their request was not fulfilled. They are seeking $3 million in licensing fees for use of the song between 2022 and 2024.

Please be advised that failure to respond or delay in complying with these demands will be deemed evidence of intentional infringement, and we will have no choice but to proceed against all those involved, accordingly, Walker wrote. Thus, it is our hope that we can resolve this issue quickly and amicably.