“ Isn’t it possible that she is voting against to help win her race,
Yes. Votes are managed this way.
Maine is a left of center state. Collins is about as conservative as you can be and still win a statewide race in Maine.
“Maine is a left of center state.”
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The first Congressional District....the southeast corner of Maine, 20% of the land area....is the liberal area.
CD 2.....80% of the State is more conservative. Candidate Trump won CD 2 by 10 points. Donald Trump won one electoral vote as a result.
Maine is a strong Second Amendment state. Conceal Carry, Constitutional Carry, etc. Even switchblades were legalized in 2015 when Constitutional Carry was passed by the RAT controlled Maine House and then GOP controlled Senate.