Rep. John Shimkus (R-Ill.) told St. Louis radio station KMOX on Thursday that he no longer supports President Trump in light of his decision to withdraw U.S. troops from northern Syria.

The big picture: Shimkus, who is not running for re-election in 2020, joins a number of Republican congressional leaders who have rebuked the president for the decision, which has left U.S.-allied Kurdish forces vulnerable to a military offensive by Turkey. No other Republican has gone as far as Shimkus in saying the decision would cause them to drop their support of Trump, however.

What he's saying: Shimkus said he told his staff "to take my name off the 'I support Donald Trump list'" and described the president's decision as "terrible and despicable," adding that he's "saddened for the Kurdish people."

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