Two polls found that more than three-fifths of Americans believe Vice President Kamala Harris was involved in covering up President Joe Biden’s declining health.

On Sunday, President Joe Biden revealed his decision to withdraw from the 2020 presidential election, leaving the door open for Vice President Kamala Harris to emerge as the front-runner. With the backing of a significant number of Democratic National Convention delegates on Monday, Harris was poised to be the clear frontrunner.

Surveys carried out following Biden’s decision to step down but prior to his address to the nation on Wednesday, indicated that a majority of Americans believed Harris was part of a cover-up regarding Biden’s worsening mental and physical health, the Daily Caller reports.

A survey by YouGov for The Times revealed that 54% of participants thought Biden’s health problems were hidden, with 68% of these participants expressing that they believed Harris played a significant role in covering up the truth regarding Biden’s health. Additionally, a survey carried out by The Democracy Institute and Daily Express US found that 62% of Americans believed Harris “lied” to the American people regarding the president’s health condition.

Democrats began calling for Biden to step aside following a poor performance in a June debate with former President Donald Trump, where he froze and lost his train of thought. Actor George Clooney noted in a July 10 New York Times op-ed that Biden, at a June fundraiser prior to the debate, “wasn’t even the Joe Biden of 2020” but “the same man we all witnessed at the debate.”

In a nationwide comparison, Trump is ahead of Harris by 1.9% based on the average of polls from July 5 to 24, as reported by Real Clear Polling. This margin increases to 2.8% when the Green Party’s Dr. Jill Stein and independent candidates Cornel West and Robert F. Kennedy Jr. are also considered in the polls.