Sen. Susan Collins (R-Maine) has revealed she has long lived with a benign essential tremor after she launched her re-election campaign for a sixth term in the US Senate .

Collins, 73, disclosed the condition — which causes visible shaking in her hands, head and voice — publicly for the first time on Wednesday while she insisted that it has not impacted her ability to serve in office.

“I have had it for the entire time that I have served in the United States Senate,” Collins told NEWS CENTER Maine . “It has absolutely no impact on my ability to do my job or on how I feel each day.”

Maine Sen. Susan Collins has revealed she has lived for decades with a benign essential tremor.…