What began with a handshake evolved into turbulence at 33,000 feet as one of diplomacy's oddest relationships took another strange turn.

G7 summit LIVE: Leaders fail to reach ambitious joint agreements on key issues after Trump’s exit

The political chemistry that once defined the Trump–Macron dynamic — immortalised by a famously tense 29-second handshake in 2017 — was nowhere to be seen in midair Tuesday when U.S. President Donald Trump blasted his French counterpart on social media.

As Trump departed the G7 summit early, French President Emmanuel Macron tried to reframe the exit as strategic.

“There is indeed an offer to meet and exchange,” Macron told reporters, suggesting the U.S. might help broker a ceasefire between Israel and Iran.