Even on former President Jimmy Carter’s 100th birthday, former President Donald Trump couldn’t resist repeating his longstanding jab at the Georgia Democrat.

In Waunakee, Wisconsin, Trump lambasted Democratic President Joe Biden, calling him “the worst president” and declaring Carter “the happiest man because Carter is considered a brilliant president by comparison.”

WATCH: Trump campaigns at a production facility in Waunakee, Wisconsin

It was empty praise for the one-term president who was defeated for re-election by Ronald Reagan in 1980, but who has become a respected world figure since his presidency.

And all without so much as a nod to Carter’s birthday and status as the longest-living former president, who has also been in hospice for nineteen months.