U.S. Sen. Susan Collins, R-Maine, speaks to media at a ground breaking ceremony at the site of the future Sanford Fire & EMS Headquarters. (Derek Davis/Staff Photographer) " data-image-caption="U.S. Sen. Susan Collins, R-Maine, speaks to media at a ground breaking ceremony at the site of the future Sanford Fire & EMS Headquarters. (Derek Davis/Staff Photographer) " data-medium-file="https://www.pressherald.com/wp-content/uploads/sites/4/2026/04/43519867_20260331_collins_5.jpg?w=300" data-large-file="https://www.pressherald.com/wp-content/uploads/sites/4/2026/04/43519867_20260331_collins_5.jpg?w=780"> U.S. Sen. Susan Collins, R-Maine, speaks to media at a ground breaking ceremony at the site of the future Sanford Fire & EMS Headquarters. (Derek Davis/Staff Photographer) A super PAC backing Republican U.S. Sen. Susan Collins is spending $2 million on an...