Voters head to the polls Tuesday for primaries in Maine, South Carolina, Nevada and North Dakota.
Democratic Senate candidate Graham Platner faces his first ballot test after a primary campaign marked by controversies.
Races will also measure President Donald Trump's influence in a South Carolina governor primary and feature a Bush family comeback attempt.
AI-generated summary was reviewed by a CNN editor.
Primaries in four states on Tuesday will offer clues about how much tolerance voters have for candidates embroiled in controversies, while testing President Donald Trump’s sway in a crowded Republican primary and setting up a key race for governor in one of the country’s premier presidential battleground states.
