If Susan Collins is a weakling so is Nancy Pelosi. They've both had the same actual level of effect on anything Trump has done and the difference between Collin's 'Pretend I want to stop him even though I know in the end I don't" and Pelosi' "Pretend I can stop him even though I know in the end I can't" is meaningless on any practical level.
Someone once referred to Susan Collins as someone who always has to look at the menu for a half hour before always deciding to eat what Mitch McConnell is having. Nancy Pelosi is someone who looks at the menu, knows immediately what she wants, orders it, but realizes after the fact that Mitch McConnell already ordered for the whole table and she still has to eat it. But sometime she can sarcastically clap at him.
Mitch McConnell is still picking both women's meals in both metaphors. The only difference is how much they don't like it and Mitch McConnell don't care.