What to watch in Tuesday's primaries as Graham Platner tries to clinch Senate nomination in Maine

Key Points:

• Maine's U.S. Senate primary is a focal point, with Democratic candidate Graham Platner seeking to rebuild credibility amid recent sexual misconduct allegations, while incumbent Republican Sen. Susan Collins faces no serious opposition.
• The Democratic Party's response to Platner's controversies highlights evolving standards within the party, contrasting with past actions during the #MeToo movement and reflecting a shift influenced by President Trump's political impact.
• President Donald Trump's influence will be tested in Republican primaries in South Carolina and Nevada, where his endorsed candidates face competitive races, including a crucial gubernatorial primary in South Carolina.
• Democrats aim to gain ground in Nevada's governor race, targeting incumbent Republican Joe Lombardo as part of a broader strategy to reclaim key governorships in swing states won by Trump in 2024.
• Political family ties are prominent in Maine and South Carolina primaries, with candidates related to established politicians, including the Bush family in Maine and Rep. Joe Wilson's son running for governor in South Carolina.