President Joe Biden remains adamant that he will be the Democratic Party's nominee in November despite rapidly declining poll numbers.

While a growing number of Democrats want him to end his campaign, former President Donald Trump recently suggested that First Lady Jill Biden is the reason he won't. 

Trump says Mrs. Biden is "having a good time" as first lady

According to the Daily Mail, the former president made that claim during an interview earlier this week with Fox News host Sean Hannity.

"I think Jill would like to see him stay, she's having a good time," Trump remarked. "I noticed she really seems to be having a good time."

However, the former president also believes his successor has reasons of his own for staying in the race, saying, "He's got an ego, and he doesn't want to quit."

"He doesn't want to do that… nobody wants to give that up in that way. He's going to feel badly about himself for a long time," Trump added.

President remains defiant

As Breitbart noted, Biden made clear in a letter sent to Democratic members of Congress earlier this week, that primary voters "have chosen me to be the nominee."

"Do we now just say this process didn't matter? The voters don’t have a say?" the president asked before adding, "I decline to do that."

"I feel a deep obligation to the faith and the trust the voters of the Democratic Party have placed in me to run this year," he asserted.

Biden went on to declare, "It was their decision to make. Not the press, not the pundits, not the big donors, not any selected group of individuals, no matter how well intentioned."

The president conveyed a similar message last week in an interview with ABC News host George Stephanopoulos, defiantly stating that only "the Lord Almighty" could convince him to end his campaign.

Another congressional Democrat calls on Biden to step aside

Those words haven't gone over well with Washington Democratic Rep. Marie Gluesenkamp Perez, as Fox News reported on Thursday that she is the fifteenth federal lawmaker from her party to say Biden should go.

"I've spent the past two weeks listening to my constituents express their concerns about the President's age and health," quoted Perez as saying in a statement.

"Americans deserve to feel their president is fit enough to do the job. The crisis of confidence in the President’s leadership needs to come to an end. The President should do what he knows is right for the country and put the national interest first," she concluded.