WATCH: Mayorkas, Wray testify on threats to the U.S. homeland in House hearing

The House Committee on Homeland Security covered a range of global and national dangers facing the United States — including cyber threats, election security, international terrorism and the increasing threat of domestic terrorism — during a hearing Tuesday morning.

Watch the hearing in the player above.

Three federal officials were in attendance: Department of Homeland Security Secretary Alejandro Mayorkas, Federal Bureau of Investigation Director Christopher Wray and National Counterterrorism Center Director Christine Abizaid.

Chairman Bennie Thompson opened the hearing by emphasizing the need to focus on evolving domestic threats.

“More work remains, as extremists are increasingly willing to engage in targeted violence, whether at a synagogue in Pittsburgh, a Walmart in El Paso, or a supermarket in Buffalo,” Thompson said.

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He also addressed the increasing threat of cyberattacks from global powers like Russia and China.

“I want to hear from our witnesses about how they assess the current threat to cyber and critical infrastructure, what progress we have made, and what more we can do,” he said.

Mayorkas responded in his opening statement that “Rapidly emerging technologies, evolving cyber capabilities, and increasing economic and political instability” in the world have make defense of the U.S. more complex than ever before.