Poll: Trump’s endorsement could hurt battleground Republicans - POLITICO

Backing from a handful of groups — including those advocating for Medicare for All, regulation of artificial intelligence and lower taxes on businesses — helped candidates overall relative to other groups, the poll found. But backing from Trump provoked a stronger reaction from the president’s opponents than supporters, making it a net negative. And backing from groups advocating for less regulation on the cryptocurrency and AI industries made respondents of both parties less likely to support a candidate relative to others...

 https://www.politico.com/news/2026/05/18/endorsement-power-backlash-trump-interest-groups-00924962