From American Thinker:

Senator Lindsey Graham (R-S.C.) promised that under his bill, to get a federal grant, the state red flag laws would have to provide “due process.”  Similarly, President Trump has sought to assure the public that any red flag legislation will provide for “rapid due process.”  When questioned, most congressional Republicans say they will support police seizing guns only if rigorous due process is provided.  Don’t buy it.  Red flag laws violate the Second Amendment, and “due process” is not a magic wand to be waved to make the infringement go away.