Representative Adam Schiff, a California Democrat, on Sunday shared Democrats' concerns about President Joe Biden hurting the party in down-ballot races, such as U.S. House and Senate elections, following his recent lackluster debate performance.

After Biden's dismal debate performance against former President Donald Trump, the presumptive GOP presidential nominee, in Atlanta last month, panic spread within the Democratic Party. There have even been growing calls for the president to drop out of the race and for another prominent Democrat to become the party's nominee. However, Biden has vowed to stay in the race, telling ABC News' George Stephanopoulos in an interview released on Friday that he would only drop out if God Almighty tells him to.

The congressman appeared on NBC News' Meet the Press on Sunday morning where he was asked by host Kristen Welker: "Are Democrats in trouble with Joe Biden at the top of the ticket?

"There are concerns with the impact on down-ballot races if the president doesn't do well," Schiff replied.

Welker then probed: "Is he dragging down down-ballot races as we speak?"

"At present, our down-ballot candidates in the Senate and in the House are doing well. They're all ahead. They are running well ahead of the president. But you can only run so far ahead of the president," Schiff said. "Obviously Joe Biden is gonna need to consider, for his own sake and his own legacy, can he beat Donald Trump? Is he the best to beat Donald Trump? But also, the profound impact this decision, maybe the most important of his presidency, will have on the House, on the Senate, on the future of the country."

Newsweek has reached out to Schiff's office via telephone and Biden's campaign via email for comment.

Schiff was also asked by Welker if Biden should drop out and let Vice President Harris run for president, who has been floated as a possible replacement. However, Harris has made it clear that she supports Biden as the party's nominee, telling CBS News on Tuesday that she is "proud to be Joe Biden's running mate."

"I think Biden should take the time talk to people outside of his immediate circle, talk to people he respects, people with objectivity, people with distance, and make the right decision for the country," the congressman replied. "And I'm confident Joe Biden has always made the fundamental distinguishing distinction between he and Donald Trump."

While debating Trump last week, Biden mumbled through his administration's accomplishments and goals in a hoarse voice. Often times he struggled to give a coherent answer. Biden's team later said he had a cold and was suffering from jet lag. Meanwhile, Trump, 78, is only three years younger than Biden and has also faced scrutiny about his age and cognitive ability.

If Harris, 59, did run for president, she could quash voters' fears of having a leader that may be unfit to serve due to old age that are associated with Biden's reelection bid.

In the hypothetical scenario that Harris replaces Biden, "the policy debate doesn't change, the capabilities of the candidate changes—all the problems associated with a declining Biden physically and mentally go away," Senator Lindsey Graham, a South Carolina Republican and Trump ally, told The Washington Post in an article published on Saturday.

The national poll aggregator FiveThirtyEight shows Trump ahead of Biden by 2.3 points (42.1 percent to 39.9 percent) as of Sunday morning. The election has been extremely tight, with predictions often flipping on who will be reelected. Just days before last month's debate, Biden was leading the former president by a narrow margin.