Trump probably has more support than he thinks in Colorado and Maine. Collins and Gardner need all the help they can get. Negative support will never win you anything, but if they support Trump they might get more votes than they think. I hope that you are not basing your assumptions on the polls, because they are all absolutely wrong. Few Conservatives will acknowledge that to strangers, especially someone calling on a phone.
I am basing my assumptions on the 2016 election results ... which I hope are "correct" because that election was four years ago. LOL.
I'm also basing it on what looks to be a complete concession by the Trump campaign in Colorado and most of Maine. I have not even seen a hint of a rally or campaign appearance by anyone associated with Trump in either state.
If you have any evidence that Donald Trump is more popular in Colorado and Maine today than he was when he lost those two states in 2016, I'd like to see it.
It was Maine U.S. Senator Collins, who saved the A$$ of U.S. Senator California Feinstein / Spy employing for 20 yr's.
Collins white washed the fact the "letter," that Feinstein held back (for more than a year) on purpose, was a good thing in the end.
You can always count on those rino's to not just stab you in the back, but to make sure and try to get you to die from lock-jaw, from a very rusty knife.