Donald Trump is doing a “will he, won’t he” dance with Vladimir Putin on who exactly is showing up to the Ukraine peace talks.

The US wants the two sides to sign up to a 30-day ceasefire in what is Europe’s biggest land war since World War Two.

Under former President Joe Biden, the U.S. took the unprecedented step of deepening cooperation with international courts of law. Washington has never been party to the Rome Statute, the treaty that established the International Criminal Court (ICC),