Former Democratic California Rep. Katie Hill speculated that President Trump's unannounced visit to Walter Reed National Military Medical Center could be because the president is suffering from dementia.

Hill, 32, made the implication on Twitter in response to a clip from President Trump's "Make America Great Again" rally in Florida on Tuesday. In the relevant part of his speech, Trump said, "And then we beat Barack Hussein Obama and whatever the hell dynasty that is." The former congresswoman quote tweeted, "Woah- @realdonaldtrump has created a memory for himself that he won in a campaign against @BarackObama. False memories are a symptom of dementia. Maybe now we know the reason for the doctors visit..."

The president unexpectedly went to Walter Reed on Saturday in order to begin portions of his annual physical exam ahead of schedule because he will have a busy 2020. Despite speculation that Trump's visit was not routine, White House press secretary Stephanie Grisham told reporters that he had a "quick exam and labs."

Hill resigned last month after the House Ethics Committee opened an investigation into allegations that the freshman congresswoman engaged in an inappropriate sexual relationship with her legislative director, Graham Kelly. Hill denied the relationship, which is prohibited by House rules, but she admitted to another with a campaign staffer. Hill blamed her “abusive” estranged husband of "driving a smear campaign" against her.

Hill has also left the door open to potentially running for office again in the future.