A political fight has broken out in Washington over whether to sell US fighter jet engines to Turkey, with Trump in favor and most of Congress opposed.

• Trump wants to sell Turkey F-110 jet engines and praises Erdogan as a strong NATO ally who does what he asks.
• Most of Washington, including pro-Israel lawmakers, wants to block the sale and is painting Turkey as a threat.
• The stated reason is that Turkey owns a Russian S-400 air defense system that could leak secrets about US jets like the F-35.
• That spying worry is treated as a real but narrow issue — the kind Congress has handled quietly since 2017.
• The bigger driver is that Israel sees Turkey as its next rival, so allies in Congress and groups like AIPAC are pushing to demonize Erdogan.

Outlook: Expect a drawn-out fight in Congress over the weapons sale, with Trump pushing to approve it and pro-Israel lawmakers trying to kill it.