One of the youngest supporters of presidential candidate Bernie Sanders died last week from Sudden Infant Death Syndrome, according to social media posts by the infant's mother.

Oliver Jack Carter Lomas-Davis, known on social media as the 'Bernie Baby,' made followers smile as his mother dressed him up as Sanders and took him to rallies to support the senator.

A photo of Oliver meeting Sanders at a Las Vegas rally a few weeks ago showed the Vermont presidential hopeful smiling as he greeted his tiny impersonator.

"Oliver Jack Carter Lomas...I love you dearly, I love you most. I love you with all my heart and soul. I know that God will keep you near since God and truth are here," Souxsie Lomas wrote in a touching Facebook post about her son's death.

The little boy reportedly passed away on Feb. 25.

According to a GoFundMe site started by Oliver's aunt, Oliver was just four months old when he died.

Online posts indicate that funeral services will be held next week in the family's home state of California.