So let’s turn this into an executive summary:

President Trump has substantial, active business interests in Turkey that Erdogan has demonstrated he can damage.

The president has repeatedly sided with Turkey against the unanimous objections of his national security advisors.

The Turkish point person for this relationship Mehmet Ali Yalçındağ, whose finances are deeply entangled with Trumps and who has repeatedly bragged about his ability to influence U.S. policy…

This fact pattern, combined with the astonishing Ukraine testimony last week, demands that Congress investigate. The questions are abundant:

How has Turkey has so successfully evaded U.S. sanctions?

What happened that caused the president to unilaterally reverse course and allow the Turks to slaughter our Kurdish allies?