Qatar’s offer to donate a luxury jet to President Trump is the latest flashpoint in a broader debate over the Gulf state's growing influence in Washington—fuelled by wealth, strategic military ties, and its expanding links to Trump’s business empire.

Qatar Airways will buy 210 jets from Boeing, the companies announced Wednesday during President Donald Trump’s visit there, as Trump is expected to accept a $400 million jet from the country, despite bipartisan criticism of security and conflict-of-interest concerns.