U.S. Rep. Ronny Jackson (R–Amarillo) led a letter last week calling on President Joe Biden to take a cognitive test.

In a letter addressed to President Joe Biden, Physician to the President Kevin O’Connor, and Chief Medical Advisor Anthony Fauci, Jackson called on the president to take a cognitive test, stating that Biden should “follow the precedent set by former President Trump to document and demonstrate sound mental abilities.” The letter went on to note several instances since March 2020 in which Jackson stated Biden had shown “mental decline and forgetfulness.”

Jackson noted media pressure on Trump during his presidency regarding a cognitive test, adding that Trump performed well on the test when Jackson served as his physician.

“The American people deserve to have absolute confidence in their president,” Jackson said. “They deserve to know that he or she can perform the duties demanded of the office, and they deserve to have full transparency on the mental state of their highest elected leader. I would argue that the American people don’t have that confidence in President Biden. When I was physician to President Donald J. Trump, the liberal media relentlessly pushed a narrative that he needed a cognitive test and that it should be the standard for anyone serving as Commander-in-Chief and Head of State. I administered the Montreal Cognitive Assessment (MOCA) test, and President Trump excelled. Given the precedent set and Biden’s clear mental impairment, I believe it is past time he undergo a cognitive test.”

The letter from Jackson included signatures from 13 other representatives, including Texas Republicans Brian Babin (Woodville), Pat Fallon (Sherman), and Beth Van Duyne (Irving).

Jackson’s full letter can be read here.