US President Donald Trump on Friday lashed out at an age-old Senate tradition, calling on Republicans to abandon a procedural mechanism known as the Blue Slip.

Describing the mechanism as "stupid and outdated" on Truth Social, Trump said it "precludes very talented and dedicated people from attaining High Office" and called for an end to an "old and ridiculous custom" that he accused the Democrats of exploiting.

What is the Blue Slip mechanism?

An informal practice within the Senate Judiciary Committee which has been in place for over a century, the Blue Slip mechanism has, over the years, provided appointed lawmakers with a way to endorse or oppose judicial nominees or US attorney nominees who would have jurisdiction over their home states.

In place since around 1917, the Blue Slip

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