Sen. Ruben Gallego (D-Ariz.) stood up for his colleague Monday during a bold appearance on CNN.

It is extraordinary for the Pentagon to directly threaten a sitting member of Congress.

The Defense Department suggested that the investigation of the Arizona Democrat Kelly stems from urging military members to refuse to follow unlawful orders.

Investigation of Mark Kelly comes after Trump accused the Democrats in the video of ‘seditious behavior, punishable by death’

Kelly was one of six lawmakers who appeared in a video urging military members to refuse illegal orders, accusing Trump of pitting the military against American citizens.

"I’ve given too much to this country to be silenced by bullies," Sen. Mark Kelly (D-Ariz.) said after the Pentagon launched an investigation into his rhetoric.

Sen. Ruben Gallego (D-Ariz.) stood up for his colleague Monday during a bold appearance on CNN.

The Democratic Arizona senator issued a defiant response to attacks from the president and Defense Secretary Pete Hegseth.

“I’m not backing down,” Sen. Mark Kelly (D-Ariz.) said after the Pentagon opened an investigation into his comments directed at the military.