Joe Biden’s ‘red line’ is an invasion of Rafah. So what happens if Israel attacks?

It's a moment of truth for Biden's policy on Israel and the Palestinians - and at the least will make continued prevarication harder to disguise

When Israeli troops paraded through the Rafah crossing with an oversized star of David on Tuesday morning, they were making a point to Hamas - and at the same time driving up to the very edge of Joe Biden's red line".

The Biden administration avoids that phrase at all costs. Its top officials also served Barack Obama, who drew a red line he did not enforce over Syria's chemical weapons. But there is no hiding from the fact that they have clearly and repeatedly stated US opposition to a Rafah offensive, absent proper humanitarian provision for the more than 1 million people sheltering there.