Since when is it the Senators job to present and to provide protest media opportunities to his constituents? Given the extremely hostile political climate, Senator Gardner is well advised to follow the advice of his security detail. Access to Senator Gardner is though the Senator's staff by email, snail mail, telephone or in person at one of several Colorado satellite offices and his office in WDC. https://www.gardner.senate.gov/contact-cory/office-locations  I have never requested a personal meeting with the Senator, but his office has responded to my communications. I suggest that if you have an issue, that you write a letter and mail the letter to his WDC office, Senator Cory Gardner, 354 Russell Senate Office Building, Washington, D.C. 20510.