Senate Democrats blocked a bill sanctioning the International Criminal Court on Tuesday after Republicans rejected changes addressing their concerns. Why it matters: The vote is a show of unity from Senate Democrats and is their first concrete action since President Trump's inauguration to thwart the GOP agenda.

Senate Democrats on Tuesday blocked a Republican-led measure that would sanction the International Criminal Court, arguing that the bill as written would backfire on U.S. allies and companies. Sen. John Fetterman of Pennsylvania was the only Democrat to vote with Republicans to advance the legislation.