The US launched a new strike on Iran right on the eve of a major election, and it is stirring up both markets and voters.

• The US hit Iran's Kashm Island, calling it a defensive move against possible missile threats; Iran says tankers hit mines in the Strait of Hormuz and the "ball is in the US court."
• Oil prices ticked up on the news, and gas prices are already rising for regular people because of the drawn-out conflict.
• There is talk inside the administration of using a tactical nuclear weapon on an underground Iranian nuclear site, something critics warn would break a decades-long taboo and could invite other countries to do the same.
• Analysts argue the war has dragged on far longer than promised and is now hurting Republicans at the polls, since voters feel misled about a quick resolution.
• Divisions are sharp heading into today's midterm vote, with the economy, healthcare cuts, and the war all weighing on how people decide to vote.

Outlook: Expect oil and gas prices to stay jumpy as the conflict continues, and watch election results today as a signal of how much the war and economy are hurting Republican support.