On the heels of her appearance at the Democratic National Convention, U.S. Senate hopeful Elizabeth Warren held her first rally here in Boston Saturday afternoon to promote her campaign.

Warren was flanked by Governor Deval Patrick in the Morse Auditorium at Boston University as roughly 750 supporters filled the room to show their support.

Warren is looking to unseat Republican incumbent Senator Scott Brown in a race that has been heating up fast and become the most expensive contest in Bay State history, according to MassLive.com.

Congressman Mike Capuano also attended the event to try and get voters to stand behind Warren when they head to the polls and vote in November.

While Warren was showing off her local support, Brown, who didn’t have any scheduled public appearances on Saturday, picked up an endorsement from Senator John McCain of Arizona. McCain is a former Republican presidential candidate.

The first big debate between Brown and Warren is set to take place this Thursday.

BostInno intern Grace Donnelly attended Warren’s weekend rally at Boston University and snapped photos of the excitement inside the hall, as Warren shook hands with voters and spoke to the crowd about helping middle class, working families.