In real life, Kennedy support has dropped nationally from around 10% to 6% since the coup that installed Harris as the nominee. The far left loons who supported Kennedy have likely already move to the Kamala price control platform / no tax on tips platform. The remaining were moderate dems, and never Trumpers. The never trumpers probably won't vote at all, but the moderate democrats (based on social media comments) are already moving to endorse Trumps.
More importantly many of the volunteers who helped Kennedy garner a million signatures are stating on social media their intentions to work for Trump, to help have Kennedy join the administration to help Make America Healthy Again.