I generally defend Susan Collins.
Unlike the Senate scum who are from red states and oppose Trump, Collins is from a blue state.
That means she is representing her voters. She is a vote for GOP leadership, when it matters for a majority, but for votes relevant to policy, she often votes with her state.
Which is what you would hope to see from any senator.
Romney and Murkowski don’t do this. They backstab their voters. Collins does not backstab her voters.
If you want Collins to be more conservative, then buy plane tickets to Maine and persuade voters there. If you can’t do that, then the failure is yours, not hers.
And she voted yes on Brett Kavanaugh's confirmation to the SCOTUS.