Students at Carnegie Mellon University are raising concerns about free speech on campus after a politically charged message aimed at President Donald Trump was painted over — twice — on a campus landmark known as “The Fence.

Trump announced $92 billion in investments for Pennsylvania, called a key player in the race to pioneer and utilize AI.

The summit aimed to position Pennsylvania as a leader in energy production for new technologies such as artificial intelligence. Protesters argued that the fossil fuels required to power those tools will increase pollutants and drive climate change.

Hundreds of protesters marched through Oakland Tuesday, voicing opposition to President Trump’s visit and the Pennsylvania Energy and Innovation Summit being held at Carnegie Mellon University.

Projects announced at the Pennsylvania Energy and Innovation Summit at Carnegie Mellon University this week included new workforce training programs as well as cybersecurity education for middle and high schoolers.

Appearing at what is being billed as the first-ever Pennsylvania Energy and Innovation Summit, President Trump praised the commonwealth’s energy sector and trumpeted a series of investments in energy and artificial intelligence that are set to be made across the state.

During the summit held in Pittsburgh, Pennsylvania on July 15, companies promised new data centers, new jobs, cybersecurity education, energy research, and more.

Some of the investments promised during the AI and energy summit​ on Tuesday at Carnegie Mellon University included AI data centers, which can require massive amounts of energy to run.

Pittsburgh Mayor critiqued Trump's policies during the President's AI summit at Carnegie Mellon University, emphasizing local commitment to equity and civic engagement.