NEW YORK (AP) — When midterm campaigning began, each major political party had a clear game plan. Republicans would emphasize border security and an economy that was finally shaking off years of high inflation. Democrats would focus attention on a deeply unpopular President Donald Trump to energize their voters.It hasn’t worked out that way. With a little more than three months to go, both parties are grappling with self-inflicted wounds and messy missteps that have complicated their paths to victory. Trump steered the country into a war against Iran with no end in sight, disrupting the global flow of oil...