Rep. Ronny Jackson, R-Texas, is standing by his calls for President Biden, 79, to take a cognitive test, saying that Biden is “not fit to be our president right now” amid the Russia-Ukraine crisis.

Rep. Ronny Jackson, R-Texas, is standing by his calls for President Biden, 79, to take a cognitive test, saying that Biden is “not fit to be our president right now” amid the Russia-Ukraine crisis.