Comparisons were quickly drawn to a tweet from Donald Trump Jr., the son of Republican presidential nominee Donald Trump.
"At dinner (with) our greenskeeper, who missed his sister’s wedding (to) work," the younger Trump wrote in 2012. "No big deal. Hopefully she’ll have another someday." Trump also said he loved the landscaper's "loyalty" to the Trump family.
Throughout his political life, Biden has remained devoted to his family. In May 2015, his son, former Delaware Attorney General Beau Biden, died after suffering from brain cancer.