Democrats set for filibuster brawl amid escalating tensions

Democrats are setting the stage for a massive brawl over the fate of the legislative filibuster as they face growing pressure to get rid of the roadblock.

With Republicans waging their first successful filibuster attempt, and more fights looming on the horizon, Democrats are driving toward a tipping point on what to do about the procedural hurdle, which requires most legislation to get 60 votes to make it through the Senate. 

In June, a number of high-profile measures important to Democrats seem set to be blocked by the GOP’s filibuster,...