To hear Ron DeSantis tell it, his splurge of up to $12m of Florida taxpayers’ money to fly migrants between two states he’s not governor of is all Joe Biden’s fault. The US president’s border policies, the Republican Florida governor insists, left him no alternative but to step in to the immigration fight, which he did by dumping two planeloads of mostly Venezuelan asylum seekers from Texas in Martha’s Vineyard, Massachusetts, last week with no advance notice. “Florida gave them an opportunity to seek greener pastures in a sanctuary jurisdiction that offered greater resources for them,” DeSantis’s office claimed in...