It's the first time they've endorsed a political candidate.
Ahmed lost by 42 votes in June's Democratic primary.
The Bread and Roses Party didn't secure enough signatures.
Tydings was a UMD alumnus and served on the school's board of regents.
Overall, Hogan has a 22-point lead over Ben Jealous.
Joseph Davies Tydings, a former Maryland senator and chairman of the University of Maryland’s Board of Regents, died of cancer Monday afternoon. He was 90.
They included bills on revenge porn, gun restrictions and conversion therapy.
State legislators have been pushing for a police investigation.
The latest polls show Hogan in the lead.
They debated the opioid crisis, gun violence and education.