Biden may be gone, mentally. He has made at least three major blunders over the past seven days that are disturbing.

Biden Says He Was Vice President During Parkland Shooting"

Joe Biden said he was vice president when the deadly high school shooting in Parkland, Florida, took place. Except, it happened in 2018, more than a year after he left office -- the latest gaffe by the Democratic presidential front-runner.

Biden told reporters in Iowa on Saturday that “those kids in Parkland came up to see me when I was vice president.” But when they visited Capitol Hill to talk with members of Congress, lawmakers were “basically cowering, not wanting to see them. They did not want to face it on camera.”

An official with the Biden campaign said the former vice president was thinking of the mass shooting at Sandy Hook Elementary School in Newtown, Connecticut, when he misspoke. That attack, in which 20 children between six and seven years old were killed along with six staff members, was in December 2012.

Regardless, Biden thought incorrectly, horribly incorrectly.

Biden, along with former Representative Gabrielle Giffords, an Arizona Democrat who was shot in the head during an event with constituents in Tucson in 2011, met with Stoneman students in Washington days after the 2018 incident.

The statement was the latest in a string of gaffes that have plagued Biden on the campaign trail. On Thursday, Biden, 76, told a group of Asian and Hispanic voters that “poor kids are just as bright” as white children. And last week he referred to mass shootings in El Paso, Texas and Dayton, Ohio, as having taken place in Houston and Michigan.

“I don’t think anybody thinks I meant anything other than what I said I meant,” Biden said.

Problem is, I no longer understand what in the hell Biden is saying.

President Donald Trump, who’s spending the weekend at his golf club in Bedminster, New Jersey, was quick to seize on Biden’s blunder. He said on Twitter that the former vice president “doesn’t have a clue.”