Senate GOP Leader Mitch McConnell (R-Ky.) has called on the American people to get COVID-19 vaccines, warning of a repeat of rising cases that paralyzed the country last year.

“Get vaccinated!” McConnell wrote in a tweet on Wednesday, July 21.

“These shots need to get into everybody’s arms as rapidly as possible, or we´re gonna be back in a situation this fall like what we went through last year,” he added.

According to New York Post, McConnell made those pro-vaccination remarks at a press conference at the Capitol where he said that taking a jab “is not complicated.”

McConnell claimed that roughly 97% of those who are currently hospitalized for COVID-19 are unvaccinated.

McConnell said that, “It never occurred to me” that after the vaccines were developed, “we’d have difficulty getting Americans to take the shot.”

Asked about allegations from Utah Gov. Spencer Cox that conservative pundits are killing people with their rhetoric, the Senate minority leader said that he encourages everybody to “ignore all of these other voices that are giving demonstrably bad advice.”

McConnell’s remarks come as the Biden administration is seeking to promote the vaccination against the virus.

President Joe Biden has started a door-to-door campaign to get more unvaccinated people to be more open with the doses after his administration failed to meet its goal to have 70% of the population get at least one dose of COVID-19 vaccine by July 4.

According to the data from the Centers for Disease Control and Prevention (CDC), 176,7 million, or 68,4% of American adults, have received at least one vaccine shot as of Wednesday, July 21, still missing the target. The data shows that 154 million adults, or 59,6%, have been fully vaccinated against COVID-19.

Biden’s campaign is also facing more challenges in recent weeks when the deaths of vaccinated people have outnumbered those of COVID-19-infected.

Last week alone, a total of 2,092 vaccinated persons were dead from vaccine-related complications, whereas the total number of deaths caused by COVID-19 was 1,918, according to data from the U.S. Vaccine Adverse Event Reporting System (VAERS).