The time for action is NOW. Nobody can fight your battles better than you. Phoning elected officials is effective because it requires large chunks of staff time, always a short and expensive commodity. You can legally record your personal conversations in the U.S. but just a few states like California won't permit it. (https://fieldguide.gizmodo.com/the-5-best-apps-for-recording-calls-on-your-phone-1792787364) Find your Senator's phone number at https://www.dailykos.com/…/-Call-your-senator-Phone-numbers… . When you write the letters they can be shared on social media:

The Honorable (Name)
United States Senate
Washington, D.C. 20510

Dear Senator (Name),